Tootfinder

Over 1.2 million downloads. How someone can live in that color scheme is beyond me 😂
Nevertheless, upon request, Asterix-Saigon is here.
Taking the NixBook project by Mike Kelly as a base again, it is the KDE spin of the family.
You know what to do at: (https://codeberg.org/thesaigoneer/aste

To appear unconditioned, sometimes even absolute, yet floating in a sea of conditioning, a web of interdependence. Is this noble, or deeply foolish. Who's the fool?

My new hobby: discovering how many mindblowing AI automation wonders are just invoking a command that already existed in that product, except less reliably

A great article on the actual role of commercial space companies.
In space, nobody can hear you budget by Sinéad O’Sullivan
https://www.ft.com/content/1317155e-9a5e-4099-9a67-407d83bb76fb?sharetype=blocked

George Pickens gets new $131 million contract projection for potential Cowboys extension https://www.sportingnews.com/us/nfl/dallas-cowboys/news/george-pickens-gets-new-131-million-…

Entwicklung des Rotordurchmessers von #Windkraftanlagen an Land in #Deutschland mit Stand vom 04.10.2025.
Der kleinste registrierte #Rotordurchmesser misst 0.2 m.
Der gr…

Principled, yet divinely impersonal

Java people really are ultimate pretrained vibecoders. Take away their IDE and they’re like vibecoders without LLM.

Seacreatures
On each episode we chat about a specific seacreature with a guest who has spent time and interacted with this ocean animal...
Great Australian Pods Podcast Directory: https://www.greataustralianpods.com/seacreatures/

WE ARE NOT DOING THIS AGAIN :omega_laugh:

I packed for #POTA before heading out to do the weekly grocery shopping, even though it was only 40°F / 4.5°C with low clouds. I decided it was too cold to sit in the helinox chair without insulation, so I drove past US-3867 and went to US-2755 Umstead State Park instead, where I could sit at a picnic table. I took a floor mat out of my car to sit on. As it was, it was cold enough that I co…

Google says Ironwood, its seventh-gen TPU, will launch in the coming weeks and is more than 4x faster than its sixth-gen TPU; it comes in a 9,216-chip config (CNBC)
https://www.cnbc.com/2025/11/06/google-unveils-ironwood-seventh-gener…

Google's rolling out its most powerful AI chip, taking aim at Nvidia with custom silicon
Google says Ironwood, the seventh generation of its Tensor Processing Unit, is more than four times faster than its predecessor chip.

Life on college campuses has changed dramatically in the last 10 months.
While institutions of higher education continue to reel from the Trump administration’s top-down attacks and scramble to adjust,
workers on campus say that their universities are simultaneously expanding their own internal repression and surveillance apparatuses to squash dissent

Campus life is unrecognizable in the Trump era: ‘There’s so many cops everywhere’
As the federal government continues its top-down assault on higher education, universities are internally building repression and surveillance machines that mirror the Trump administration.

Crippling case of feddiction

Manchmal wackelt ja schlicht der Schwanz mit dem Hund.
Drahtbericht: Deutsche Diplomaten fordern undiplomatisch #Chatkontrolle https://netzpolitik.org/2025/drahtberi

Cozy, casual, #fediversation & #fediversing

I never use a software store; the cli rules for me. The Cosmic Store though adds community made applets for the desktop environment. A couple of days ago I easily added a theme to the repo. This community-contributing aspect is a bit overlooked, but it makes Cosmic stand out.
#cosmic #nixos

RE: https://meta.masto.host/@GamingNews/115666975867414391
Terrible, but as @ KaiserBeamz said it on Twitter "It's bad. But after researching the 50 year history of Warner corporate mergers, there's a good chance this will fuck over Netflix…

Did they finally reveal who was funding Cohost?

Moody Urbanity - Nowhere 🔲
情绪化城市 - 无处 🔲
📷 Nikon FE
🎞️ Lucky SHD 400
#filmphotography #Photography #blackandwhite

Maybe another coffee and then work, but bed feels really nice today.
02:00 bedtime considered harmful 😖

I did an event yesterday where I sold some of my prints and illustrations. A couple was really excited when they saw this one!
As they walked away from my table I heard one say "Iron Giant!" and I uh, well... I really hope it's not a gift for a Star Wars fan!
#art #illustration

aktuelles #Wetter #Behrendorf #Wische 07-11-2025 20:35
Temperatur: (min: 1,3C) 1,3C (max: 10,5C)
Feuchte: 99%
Luftdruck: 1012,4 hPa (gleichbleibend)
Windrichtung: N/A Grad
W…

epinions: Epinions product ratings (2005)
A bipartite network of users and the products they rated on the website Epinions.com. A user connects to all products on which that user entered a rating. Edge weight represents the rating score, and edges are timestamped.
This network has 876252 nodes and 13668320 edges.
Tags: Economic, Preferences, Timestamps, Weighted

Most probable prediction about OpenAI future I’ve read.
Spoiler: it will be successful and we will not like it.
https://open.substack.com/pub/defragzone/p/welcome-to-cognitive-capitalism

Welcome to Cognitive Capitalism
Or: How Open AI Learned to Stop Worrying and Love Your Data

It is with great satisfaction that I can notify you all that dd'ing the latest Win11 iso doesn't result in a bootable usb stick.
Gatekeeping at its best!

true

Airbnb reports Q3 revenue up 10% YoY to $4.1B, vs. $4.08B est., Nights and Seats booked up 9% to 133.6M, vs. 131.75M est., forecasts Q4 revenue above estimates (Ashley Capoot/CNBC)
https://www.cnbc.com/2025/11/06/airbnb-abnb-q3-results-2025.html

Airbnb shares rise on revenue beat, stronger-than-expected forecast
Shares of Airbnb rose in extended trading after the company reporter third-quarter results that beat revenue expectations.

Quantitative Convergence Analysis of Projected Stochastic Gradient Descent for Non-Convex Losses via the Goldstein Subdifferential
Yuping Zheng, Andrew Lamperski
https://arxiv.org/abs/2510.02735

Quantitative Convergence Analysis of Projected Stochastic Gradient Descent for Non-Convex Losses via the Goldstein Subdifferential
Stochastic gradient descent (SGD) is the main algorithm behind a large body of work in machine learning. In many cases, constraints are enforced via projections, leading to projected stochastic gradient algorithms. In recent years, a large body of work has examined the convergence properties of projected SGD for non-convex losses in asymptotic and non-asymptotic settings. Strong quantitative guarantees are available for convergence measured via Moreau envelopes. However, these results cannot be…

#gießen #giessen
Da kann man sich nur noch schämen.

15 monate lang war die eingangs-schiebetür in unserer bibliothek im vom-stein-haus am schlossplatz defekt, und wir mussten einen umweg über eine fluchttür nutzen. seit montag kann man aber endlich wieder nach links zur bibliothek abbiegen und durch die neue (nicht mehr schiebe-)tür eintreten! 🥳
https://www.uni-muenster…

That Helium browser is a nice one. Super snappy. Very nice, community efforts to package it in distro formats (and Flatpak) ongoing. Of course appimages run ootb on Slackware ;-). Good tip by @…!
#helium

Just as I've started to get a pretty comfortable with all the coordinate representations, projections, etc., I see this. If I would've came across an older dataset with this before now, I'm not sure what I would've done. Tried an internet search out of curiosity, but didn't come up with much. sp::char2dms converts it to numerical coordinates, but I didn't see any other functions/pkgs out there that does that conversion.

🍌 Indigenous Guatemalans denounce exploitation on Mexican farms: ‘Bananas are worth more than us’
https://english.elpais.com/international/2025-11-07/indigenous-guatemalans-denounce-exploita…

Indigenous Guatemalans denounce exploitation on Mexican farms: ‘Bananas are worth more than us’
The plants that grow these sweet fruits are cultivated with extreme care. But those who pamper them are despised and exploited

Crosslisted article(s) found for cond-mat.mtrl-sci. https://arxiv.org/list/cond-mat.mtrl-sci/new
[2/2]:
- Surface Acoustic Wave Gas Sensors: Innovations in Functional Materials, Sensing Dynamics, and Sig...
Acharya, Srinivasan, Shanahan, Roedig, Riordan, Nagaraja
…

RE: https://social.losno.co/@chris/115504741771429344
Boo!

Open Webinar IIP – 14 ottobre 2025 – COMPLIANCE ORCHESTRA! Strumenti e armonie di conformitŠ integrata
https://www.istitutoitalianoprivacy.it/2025/10/05/open-webinar-iip-14-ottobre-2025-compli…

Two alternative proofs of weak Harnack inequality for mixed local and nonlocal $p$-Laplace equations with a nonhomogeneity
Prashanta Garain
https://arxiv.org/abs/2510.04065 http…

Two alternative proofs of weak Harnack inequality for mixed local and nonlocal $p$-Laplace equations with a nonhomogeneity
We study a class of mixed local and nonlocal $p$-Laplace equations with prototype \[ -Δ_p u + (-Δ_p)^s u = f \quad \text{in } Ω, \] where $Ω\subset \mathbb{R}^n$ is bounded and open. We provide sufficient condition on $f$ to ensure weak Harnack inequality with a tail term for sign-changing supersolutions. Two different proofs are presented, avoiding the Krylov--Safonov covering lemma and expansion of positivity: one via the John--Nirenberg lemma, the other via the Bombieri--Giusti lemma. To…

Replaced article(s) found for cond-mat.soft. https://arxiv.org/list/cond-mat.soft/new
[1/1]:
- Capillary lubrication of a spherical particle near a fluid interface
Aditya Jha (LOMA), Yacine Amarouchene (LOMA), Thomas Salez (LOMA)

The Department of Justice (DOJ) plans to
👉 dismantle protections for trans and intersex people
in federal, state, and local prisons, jails, and youth detention facilities,
according to a government memo obtained by Prism. 
The memo, dated Dec. 2, takes aim at existing standards of the Prison Rape Elimination Act (PREA)
that the department says do not comport with the Trump administration’s first-day executive order that,
among other things, targeted protec…

Trump administration plans to end prison rape protections for trans and intersex people, memo says
A Department of Justice memo says certain standards under the Prison Rape Elimination Act do not align with Trump’s executive order

Did they finally reveal who was funding Cohost?

Crosslisted article(s) found for cond-mat.mtrl-sci. https://arxiv.org/list/cond-mat.mtrl-sci/new
[1/2]:
- Tritium Separation from Gaseous 1,2,3H Isotopologue Mixtures by Selective Adsorption on Ag-Exchan...
Alexandra Becker, Holger Lippold, Michael Hirscher, Cornelius Fi…

FPF releases Issue Brief on Brazil’s Digital ECA: new paradigm of safety & privacy for minors online
https://fpf.org/blog/fpf-releases-issue-brief-on-brazils-digital-eca-new-paradigm-of-safety-privacy-for-minors-online…

Crosslisted article(s) found for cond-mat.soft. https://arxiv.org/list/cond-mat.soft/new
[1/1]:
- Percolation and criticality of systems with competing interactions on Bethe lattices: limitations...
Miranda, Zheng, Charbonneau, Coniglio, Cugliandolo, Tarzia

Role of chromium oxides and carbides in strengthening CoCrFeNi multi-principle element alloys
Artur Olejarz, Wenyi Huo, Anna Kosinska, Maciej Zielinski, Tomasz Stasiak, Marcin Chmielewski, Wojciech Chmurzynski, Max Rae Chu, Michael Patrick Short, Lukasz Kurpaska
https://arxiv.org/abs/2510.05021

Role of chromium oxides and carbides in strengthening CoCrFeNi multi-principle element alloys
Multi-principal element alloys (MPEAs) can potentially offer exceptional material properties, but their complex, costly manufacturing limits their scalability. Chemical complexity and complex manufacturing processes lead to the formation of some secondary phases, which have a significant impact on the final properties. In this work, chromium compound dispersoid enhancements (Cr- oxides and carbides) were formed in CoCrFeNi MPEAs to enhance their microstructural and high-temperature mechanical p…

Now I exist.
#cosmic

Heterogenous Dynamics in a Polymer Solution Revealed through Measurement of Ultraslow Convection
Thomas P. Chaney, Samuel D. Marks, Dylan M. Ladd, Andrei Fluerasu, Federico Zontone, Yuriy Chushkin, Sebastian Fr\"ucht, Dina Sheyfer, Kelsey Levine, Amnahir E. Pe\~na-Alc\'antara, Hans-Georg Steinr\"uck, Michael F. Toney
https://…

Heterogenous Dynamics in a Polymer Solution Revealed through Measurement of Ultraslow Convection
Understanding solution-phase aggregation and dynamics in complex fluids is critical for material processing, yet widely used dynamic light scattering (DLS) fails for strongly attenuating systems such as conjugated polymers. We use X-ray photon correlation spectroscopy (XPCS) to probe the dynamics of a polymer, PM7, in toluene, revealing unexpected oscillations in the autocorrelation function that show vertical flow during measurement. Despite the relatively low X-ray absorption, measured flow v…

As a dedicated procrastinator I'm pleased to already see 186 themes available in Cosmic tweaks (part of cosmix-saigon) 😜
#cosmic

Comparing fine-tuning strategies of MACE machine learning force field for modeling Li-ion diffusion in LiF for batteries
Nada Alghamdi, Paolo de Angelis, Pietro Asinari, Eliodoro Chiavazzo
https://arxiv.org/abs/2510.05020

Comparing fine-tuning strategies of MACE machine learning force field for modeling Li-ion diffusion in LiF for batteries
Machine learning interatomic potentials (MLIPs) are transforming materials science and engineering by enabling the study of complex phenomena, such as those critical to battery operation. In this work, we benchmark the MACE machine learning model against a well-trained DeePMD potential for predicting interstitial lithium diffusivity in LiF, a key component in the solid electrolyte interphase in Li ion batteries. Our results demonstrate that the MACE-MPA-0 foundational model achieves comparable …

Learning Microswimmer Collision Dynamics and Predicting Diffusivities using a Neural-Network-Assisted Boltzmann Approach
Haruki Hayano, Akira Furukawa, Kang Kim
https://arxiv.org/abs/2510.02559

Learning Microswimmer Collision Dynamics and Predicting Diffusivities using a Neural-Network-Assisted Boltzmann Approach
We present a neural-network--assisted Boltzmann framework that learns the binary-collision map of microswimmers from data and uses it to evaluate collision integrals efficiently. Using a representative model swimmer, the learned map provides quantitative predictions for rotational and translational diffusivities and allows a linear-stability analysis of the isotropic state against polar ordering in dilute suspensions. The resulting predictions closely match direct simulations in the dilute regi…

@pkotrcka@toot.community Good morning and enjoy your coffee!

Atomistic Insights into the Degradation of Metal Phthalocyanine Catalysts during Oxygen Reduction Reaction
Huanhuan Yang, Guangfu Luo
https://arxiv.org/abs/2510.04922 https://…

Atomistic Insights into the Degradation of Metal Phthalocyanine Catalysts during Oxygen Reduction Reaction
Oxygen reduction catalysts frequently suffer from degradation under harsh operating conditions, and the limited understanding of the underlying mechanisms hampers the development of effective mitigation strategies. In this study, we integrate first-principles calculations with a time-dependent microkinetic model to investigate the deactivation pathways of six highly active metal phthalocyanines (MPc, M = Cr, Mn, Fe, Ru, Rh, and Ir) during the oxygen reduction reaction (ORR). We quantitatively a…

Turbulent Dynamics in Active Solids
Wilhelm Sunde Lie, Ingve Simonsen, Paul Gunnar Dommersnes
https://arxiv.org/abs/2510.02461 https://arxiv.org/pdf/2510.0…

Turbulent Dynamics in Active Solids
We investigate numerically the polar ordering dynamics in the active elastic solid model (AES) and find classic signatures of turbulent dynamics: power-law scaling for the energy spectrum and non-Gaussian statistics of velocity increments. However, there is no energy cascade, in line with previous findings for active turbulence in fluids. The results extend the concept of active turbulence to solid systems and are expected to be important for understanding active biological solids, such as bact…

@pkotrcka@toot.community That's the start of all, a sim card 😊

Chasing Anharmonicities in Polarization-Orientation Raman Spectra of Acene Crystals with Machine Learning
Paolo Lazzaroni, Shubham Sharma, Mariana Rossi
https://arxiv.org/abs/2510.04843

Chasing Anharmonicities in Polarization-Orientation Raman Spectra of Acene Crystals with Machine Learning
We present a first-principles machine-learning computational framework to investigate anharmonic effects in polarization-orientation (PO) Raman spectra of molecular crystals, focusing on anthracene and naphthalene. By combining machine learning models for interatomic potentials and polarizability tensors, we enable efficient, large-scale simulations that capture temperature-dependent vibrational dynamics beyond the harmonic approximation. Our approach reproduces key qualitative features observe…

[2025-10-06 Mon (UTC), 3 new articles found for cond-mat.soft Soft Condensed Matter]
toXiv_bot_toot

@pkotrcka@toot.community Consider living there?

Electronic and thermal properties of the phase-change memory material, Ge2Sb2Te5, and results from spatially resolved transport calculations
Kishor Nepal, Aashish Gautam, Ridwan Hussein, Konstantinos Konstantinou, Stephen. R. Elliott, Chinonso Ugwumadu, David A. Drabold
https://arxiv.org/abs/2510.04783…

Electronic and thermal properties of the phase-change memory material, Ge2Sb2Te5, and results from spatially resolved transport calculations
We report new insights into the electronic, structural, and transport (heat and charge) properties of the phase-change memory material Ge2Sb2Te5. Using realistic structural models of Konstantinou et. al. [Nat. Commun. 10, 3065 (2019)], we analyze the topology, electronic states, and lattice dynamics with density functional methods, including hybrid-functional calculations and machine-learned interatomic potentials. The Kohn-Sham orbitals near the Fermi level display a strong electron-phonon cou…

Correlative Analysis of Iron-Driven Structural, Optical, and Magnetic Properties in Natural Biotite Crystals
Raphaela de Oliveira, Yara Galv\~ao Gobato, Ronei C. de Oliveira, Jos\'e R. de Toledo, Ver\^onica C. Teixeira, Angelo Malachias, Cesar R. Rabahi, Chunwei Hsu, Adilson J. A. de Oliveira, Herre. S. J. van der Zant, Ingrid D. Barcelos, Alisson R. Cadore

Correlative Analysis of Iron-Driven Structural, Optical, and Magnetic Properties in Natural Biotite Crystals
Biotite crystals are phyllosilicate trioctahedral micas with the general chemical formula K(Mg,Fe)3AlSi3O10(OH)2 that form a solid-solution series with iron-poor phlogopite and iron-rich annite endmembers. With a wide band gap energy and a layered structure with free surface charges, biotite nanosheets can be readily obtained by cleavage methods and used as dielectrics in nanodevice fabrication for the next generation of electronics and energy harvesting. Here, a comprehensive study of biotite …

@pkotrcka@toot.community That's looking great!

AtomWorld: A Benchmark for Evaluating Spatial Reasoning in Large Language Models on Crystalline Materials
Taoyuze Lv, Alexander Chen, Fengyu Xie, Chu Wu, Jeffrey Meng, Dongzhan Zhou, Bram Hoex, Zhicheng Zhong, Tong Xie
https://arxiv.org/abs/2510.04704

AtomWorld: A Benchmark for Evaluating Spatial Reasoning in Large Language Models on Crystalline Materials
Large Language Models (LLMs) excel at textual reasoning and are beginning to develop spatial understanding, prompting the question of whether these abilities can be combined for complex, domain-specific tasks. This question is essential in fields like materials science, where deep understanding of 3D atomic structures is fundamental. While initial studies have successfully applied LLMs to tasks involving pure crystal generation or coordinate understandings, a standardized benchmark to systemati…

Investigating into mechanisms of high temperature strength of refractory high-entropy alloys
Sai Anandhi Seetharaman, Soumyadipta Maiti, Ambesh Gupta, Beena Rai
https://arxiv.org/abs/2510.04589

Investigating into mechanisms of high temperature strength of refractory high-entropy alloys
The yield strength plateau of two BCC refractory high entropy alloys (RHEAs) - MoNbTaVW and MoNbTaW was examined through hybrid Monte Carlo and molecular dynamics (MC/MD) simulations. By analyzing atomic diffusivities derived from vacancy formation and migration energies around the edge dislocation cores, the number of critical atomic swaps were calculated at different temperatures. Using hybrid MC/MD simulations of these critical swaps, we demonstrate that above 1400K, the stress required to m…

@pkotrcka@toot.community

On the Origin of Carrier Loss in Mg-Doped N-Polar GaN
Masahiro Kamiyama, Shashwat Rathkanthiwar, Cristyan Qui\~nones-Garc\'ia, Seiji Mita, Dolar Khachariya, Pramod Reddy, Ronny Kirste, Ram\'on Collazo, Zlatko Sitar
https://arxiv.org/abs/2510.04381

On the Origin of Carrier Loss in Mg-Doped N-Polar GaN
The neutral $(V_N-3Mg_{Ga})^0$ complex was found to be the primary compensator in Mg-doped, N-polar GaN. The experimental data showed a sharp drop in hole concentration once [Mg] exceeded ~$10^{19} cm^{-3}$. Temperature-dependent Hall measurements, in conjunction with a charge balance model, revealed that the carrier loss was due to a drastic reduction in acceptor concentration ($N_A$), suggesting that a significant fraction of Mg atoms incorporated in an electrically neutral configuration. A q…

Longitudinal transport spin polarization of spin degenerate antiferromagnets
Meng Zhu, Jianting Dong, Xinlu Li, Jiahao Shentu, Yizhuo Song, Evgeny Y. Tsymbal, Jia Zhang
https://arxiv.org/abs/2510.04184

Longitudinal transport spin polarization of spin degenerate antiferromagnets
A vital goal in spintronics is the efficient electrical generation of spin currents, a pursuit that has recently focused on using antiferromagnets (AFMs) as spin current sources. It has been demonstrated that antiferromagnets with broken PT symmetry (parity + time reversal) can efficiently generate longitudinal and transverse spin currents. At the same time, it has been generally thought that antiferromagnets with PT symmetry (PT-AFMs) forbid the longitudinal spin polarization due to their spin…

Dynamic breaking of axial symmetry of acoustic waves in crystals as the origin of nonlinear inelasticity and chaos: Analytical model and MD simulations
Zbigniew Kozio{\l}
https://arxiv.org/abs/2510.04175

Dynamic breaking of axial symmetry of acoustic waves in crystals as the origin of nonlinear inelasticity and chaos: Analytical model and MD simulations
A Chain of Springs and Masses (CSM) model is used in the interpretation of molecular dynamics (MD) simulations of movement of atoms in FCC crystals, oriented like during typical simulations performed in studies of the dynamics of line dislocations. The proposed description is inspired by and supported by MD simulations. We find out that a force that is perpendicular to the direction of the applied external shear pressure and in the direction of line dislocations occurs within the bulk of crysta…

Direct observation of band structure modifications from monolayer WSe2 to Janus WSSe
Masato Sakano, Shunsuke Akatsuka, Takato Yamamoto, Tianyishan Sun, Dingkun Bi, Hiroto Ogura, Naoya Yamaguchi, Fumiyuki Ishii, Natsuki Mitsuishi, Kenji Watanabe, Takashi Taniguchi, Miho Kitamura, Koji Horiba, Kenichi Ozawa, Katsuaki Sugawara, Seigo Souma, Takafumi Sato, Yuta Seo, Satoru Masubuchi, Tomoki Machida, Toshiaki Kato, Kyoko Ishizaka

Direct observation of band structure modifications from monolayer WSe2 to Janus WSSe
Janus monolayer transition metal dichalcogenides (TMDs), created by post-growth substitution of the top chalcogen layer, represent a new direction for engineering 2D crystal properties. However, their rapid ambient degradation and the difficulty of obtaining large-area monolayer samples have limited the available experimental probes, leaving their detailed electronic structure near the Fermi level largely unexplored. In this work, by performing micro-focused angle-resolved photoemission spectro…

Atomistic Machine Learning with Cartesian Natural Tensors
Qun Chen, A. S. L. Subrahmanyam Pattamatta, David J. Srolovitz, Mingjian Wen
https://arxiv.org/abs/2510.04015 https://

Atomistic Machine Learning with Cartesian Natural Tensors
Atomistic machine learning (ML) is a transformative tool for accurate and efficient investigation of material behavior at the atomic scale. While such models have been constructed within Cartesian space to harness geometric information and preserve intuitive physical representations, they face inherent challenges - primarily due to the lack of a systematic symmetry-preserving framework for representing arbitrary physical tensors. We address these challenges by proposing Cartesian Natural Tensor…

A van der Waals material exhibiting room temperature broken inversion symmetry with ferroelectricity
Fabia F. Athena, Cooper A. Voigt, Mengkun Tian, Anjan Goswami, Emily Toph, Moses Nnaji, Fanuel Mammo, Brent K. Wagner, Sungho Jeon, Wenshan Cai, Eric M. Vogel
https://arxiv.org/abs/2510.03977

A van der Waals material exhibiting room temperature broken inversion symmetry with ferroelectricity
Since the initial synthesis of van der Waals two-dimensional indium selenide was first documented in 1957, five distinct polymorphs and their corresponding polytypes have been identified. In this study, we report a unique phase of indium selenide via Scanning Transmission Electron Microscopy (STEM) analysis in the synthesized large-area films -- which we have named the $β^\text{p}$ phase. The quintuple layers of the $β^\text{p}$ phase, characterized by a unique zigzag atomic configuration wit…

Finding the temperature window for atomic layer deposition of ruthenium metal via efficient phonon calculations
Alexandr Fonari, Simon D. Elliott, Casey N. Brock, Yan Li, Jacob Gavartin, Mathew D. Halls
https://arxiv.org/abs/2510.03975

Finding the temperature window for atomic layer deposition of ruthenium metal via efficient phonon calculations
We investigate the use of first principles thermodynamics based on periodic density functional theory (DFT) to examine the gas-surface chemistry of an oxidized ruthenium surface reacting with hydrogen gas. This reaction system features in the growth of ultrathin Ru films by atomic layer deposition (ALD). We reproduce and rationalize the experimental observation that ALD of the metal from RuO4 and H2 occurs only in a narrow temperature window above 100°C, and this validates the approach. Specif…

Adsorption-induced surface magnetism
Milo\v{s} Baljozovi\'c, Shiladitya Karmakar, Andr\'e L. Fernandes Cauduro, Mothuku Shyam Sundar, Marco Lozano, Manish Kumar, Diego Soler Polo, Andreas K. Schmid, Ashutosh V. Bedekar, Pavel Jelinek, Karl-Heinz Ernst
https://arxiv.org/abs/2510.03897

Adsorption-induced surface magnetism
We report the emergence of adsorption-induced magnetism from heterohelicene molecules on a non-magnetic Cu(100) surface. Spin-polarized low-energy electron microscopy (SP-LEEM) measurements reveal spin-dependent electron reflectivity for enantiopure 7,12,17-trioxa[11]helicene (TO[11]H) monolayers, indicating the formation of a spin-polarized state localized in the topmost copper layer. Control experiments on clean Cu(100) and TO[11]H on highly oriented pyrolytic graphite show no such effect, ex…

Hybrid MBE Route to Adsorption-Controlled Growth of BaTiO3 Membranes with Robust Polarization Switching
S. Choo, S. Varshney, J. Shah, A. K. Manjeshwar, D. K. Lee, K. A. Mkhoyan, R. D. James, B. Jalan
https://arxiv.org/abs/2510.03834

Hybrid MBE Route to Adsorption-Controlled Growth of BaTiO3 Membranes with Robust Polarization Switching
Freestanding ferroelectric membranes are promising for flexible electronics, nonvolatile memory, photonics, and spintronics, but their synthesis is challenged by the need for reproducibility with precise stoichiometric control. Here, we demonstrate the adsorption-controlled growth of single-crystalline, epitaxial BaTiO3 films by hybrid molecular beam epitaxy (MBE) on a binary oxide sacrificial layer. Using a simple water-droplet lift-off method, we obtained submillimeter- to millimeter-sized me…

Observation of a Novel CDW Superstructure in Monolayer 1T-$VS_{2}$ at Room Temperature and its Evolution in Multilayers
Samanta Pal, Kaustuv Chatterjee, A. K. Raychaudhuri, Prabir Pal
https://arxiv.org/abs/2510.03800

Observation of a Novel CDW Superstructure in Monolayer 1T-$VS_{2}$ at Room Temperature and its Evolution in Multilayers
Spontaneous formation of charge density wave (CDW) superstructures in monolayers (MLs) of a two-dimensional (2D) crystal lattice is fundamental in understanding its complex quantum states. We report a successful top-down liquid phase exfoliation and stamp transfer process (LPESTP) to create ML VS\textsubscript{2}, undergoing a CDW transition at room temperature. Using high-resolution transmission electron microscopy (HRTEM) and electron diffraction (ED), we observed the coexistence of 1T and 2H…

The magnon spectra of g-type altermagnet bulk CrSb
Murat Tas
https://arxiv.org/abs/2510.03759 https://arxiv.org/pdf/2510.03759

The magnon spectra of g-type altermagnet bulk CrSb
We present a calculation of the magnon spectra and chiral lifetimes of altermagnons in bulk CrSb using the many-body perturbation theory. The spin-split band structure is evident in the magnon spectra. Altermagnons attain an energy of 275 meV at the K point of the Brillouin zone. Due to large spin splitting at a specific ${\bf q}$ point along the A - M direction, lifetime differences of chiral altermagnons reach approximately 20 fs.

Electro-optic effects in some sliding ferroelectrics
Xueqing Wan, Zhenlong Zhang, Charles Paillard, Jinyang Ni, Lei Zhang, Zhijun Jiang, Laurent Bellaiche
https://arxiv.org/abs/2510.03738

Electro-optic effects in some sliding ferroelectrics
Sliding ferroelectrics, which exhibit out-of-plane polarization arising from specific stacking rather than conventional ionic displacements, are new types of ferroelectrics whose underdeveloped physics needs to be explored. Here, we investigate for the first time the electro-optic (EO) response of these materials using first-principles calculations, focusing on ZrI$_{2}$ as a prototype. We reveal that, contrary to conventional ferroelectrics, the EO effect in ZrI$_{2}$ is dominated by its elect…

In-situ characterisation and data-driven crystal plasticity analysis of short-to-long crack transition in a ductile aluminium alloy
Abdalrhaman Koko, Bemin Sheen, Caitlin Green, Fionn Dunne
https://arxiv.org/abs/2510.03713

In-situ characterisation and data-driven crystal plasticity analysis of short-to-long crack transition in a ductile aluminium alloy
Crack arrest in ductile alloys plays a critical role in damage-tolerant design for aerospace and structural applications, yet the transition from microstructure-sensitive short cracks to load-controlled long cracks remains poorly understood. Here, we present an in-situ, high-resolution experimental study of crack propagation in cold-worked 5052 aluminium alloy using scanning electron microscopy digital image correlation (SEM-DIC), electron backscatter diffraction (EBSD), and novel data-driven c…

Hierarchically Engineered Titanium Suboxide Films for High-Efficiency Solar Thermal Conversion
Silpa S, Ann Eliza Joseph, Srinivas G, Harish C Barshilia, Vinayak B Kamble
https://arxiv.org/abs/2510.03710

Hierarchically Engineered Titanium Suboxide Films for High-Efficiency Solar Thermal Conversion
We report the development of broadband solar absorber coatings based on titanium suboxide composite thin films on aluminium substrates. The films are fabricated via scalable DC magnetron sputtering using a Ti target, followed by post-annealing in a fixed $O_2$ partial pressure of 0.45 mbar. By tuning deposition time and annealing temperature, a composite phase of $Ti_2O_3$ and $TiO_2$ was achieved. The Raman mapping of the films substantiates the distribution and coexistence of the two phases. …

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures
Frances Isabel Allen
https://arxiv.org/abs/2510.03694 https://

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures
The focused ion beam (FIB) microscope is well established as a high-resolution machining instrument capable of site-selectively removing material down to the nanoscale. Beyond subtractive processing, however, the FIB can also add material using a technique known as focused ion beam induced deposition (FIBID), enabling the direct-write of complex nanostructures. This work explores new directions in three-dimensional nanoprinting with FIBID, harnessing unique features of helium and neon FIBs to f…

Replaced article(s) found for cond-mat.mtrl-sci. https://arxiv.org/list/cond-mat.mtrl-sci/new
[1/1]:
- Amorphous Boron Nitride as an Ultrathin Copper Diffusion Barrier for Advanced Interconnects
Kaya, Kim, Kim, Galvani, Colombo, Lanza, Shin, Cole, Shin, Roche

Replaced article(s) found for cond-mat.mtrl-sci. https://arxiv.org/list/cond-mat.mtrl-sci/new
[1/1]:
- Thermal stability of nano-scale ferroelectric domains by molecular dynamics modeling
Arne J. Klomp, Ruben Khachaturyan, Theophilus Wallis, Anna Gr\"unebohm, Karste…

Crosslisted article(s) found for cond-mat.mtrl-sci. https://arxiv.org/list/cond-mat.mtrl-sci/new
[1/1]:
- Uncovering origins of heterogeneous superconductivity in La$_3$Ni$_2$O$_7$ using quantum sensors
Mandyam, Wang, Wang, Chen, Jayarama, Gupta, Riesel, Levitas, Laumann…

Sliding multiferroicity in hexagonal stacked CrI3
Carter Fox, Jose D. Mella, Jack Rollins, Yangchen He, Yulu Mao, Haotian Jiang, Alaina Drew, Hongrui Ma, Takashi Taniguchi, Kenji Watanabe, Ying Wang, Daniel Rhodes, Salvador Barraza-Lopez, Jun Xiao
https://arxiv.org/abs/2510.03220

Sliding multiferroicity in hexagonal stacked CrI3
Developing new multiferroics at the two-dimensional (2D) limit with energy-efficient magnetoelectric coupling can inform the interplay physics of novel orders and advance on-chip high-performance computing applications. Here we apply stacking order engineering to create a new type of 2D multiferroics, namely sliding multiferroics, based on polar hexagonal stacked (H-stacked) CrI3. This new stacking order removes structural inversion symmetry and gives rise to room temperature sliding ferroelect…

Thermal assisted transport of biexcitons in monolayer WSe2
Dorian B\'eret, Louka Hemmen, Vishwas Jindal, Sreyan Raha, Thierry Amand, Delphine Lagarde, Andrea Balocchi, C\'edric Robert, Helene Carrere, Xavier Marie, Pierre Renucci, Laurent Lombez
https://arxiv.org/abs/2510.03092

Thermal assisted transport of biexcitons in monolayer WSe2
Studies of excitonic transport in transition metal dichalcogenide monolayers have attracted increasing interest in recent years in order to develop nano-optoelectronic devices made with 2D materials. These studies began with low to moderate optical excitation regimes, and more recently have focused on high injection regimes where nonlinear effects appear. This article is focused on the transport of biexcitons by spatially and temporally resolved photoluminescence spectroscopy at high excitation…

Electrically modulated light-emitting diodes driven by resonant and antiresonant tunneling between Cr$_2$Ge$_2$Te$_6$ electrodes
Natalia Zawadzka, Kristina Vaklinova, Tomasz Wo\'zniak, Mihai I. Sturza, Holger Kohlmann, Kenji Watanabe, Takashi Taniguchi, Adam Babi\'nski, Maciej Koperski, Maciej R. Molas
https://arxiv.org/abs/2510.03…

Electrically modulated light-emitting diodes driven by resonant and antiresonant tunneling between Cr$_2$Ge$_2$Te$_6$ electrodes
Exploring the electron tunneling mechanisms in diverse materials systems constitutes a versatile strategy for tailoring the properties of optoelectronic devices. In this domain, bipolar vertical tunneling junctions composed of van der Waals materials with vastly different electronic band structures enable simultaneous injection of electrons and holes into an optically active material, providing a universal blueprint for light-emitting diodes (LEDs). Efficient modulation of the injection efficie…

Structural Chirality and Natural Optical Activity across the $\alpha$-to-$\beta$ Phase Transition in SiO$_2$ and AlPO$_4$ from first-principles
F. G\'omez-Ortiz, A. Zabalo, A. M. Glazer, E. E. McCabe, A. H. Romero, E. Bousquet
https://arxiv.org/abs/2510.03047

Structural Chirality and Natural Optical Activity across the $α$-to-$β$ Phase Transition in SiO$_2$ and AlPO$_4$ from first-principles
Natural optical activity (NOA), the ability of a material to rotate the plane of polarized light, has traditionally been associated with structural chirality. However, this relationship has often been oversimplified, leading to conceptual misunderstandings, particularly when attempts are made to directly correlate structural handedness with optical rotatory power. In reality, the relationship between chirality and NOA is more nuanced: optical activity can arise in both chiral and achiral crysta…

Subthermal Mean Transverse Energies Induced by Electron Refraction on the Jump in Mass at the Surface of Multialkali Photocathodes
S. A. Rozhkov, V. V. Bakin, H. E. Scheibler, V. S. Rusetsky, D. V. Gorshkov, D. A. Kustov, V. A. Golyashov, V. L. Alperovich, O. E. Tereshchenko
https://arxiv.org/abs/2510.02897…

Subthermal Mean Transverse Energies Induced by Electron Refraction on the Jump in Mass at the Surface of Multialkali Photocathodes
The search for photocathode materials with low mean transverse energies (MTEs) and, hence, low intrinsic emittance is of crucial importance for various fields of particle and solid state physics. Here, we demonstrate that polycrystalline multialkali Na$_{2}$KSb(Cs,Sb) photocathodes with negative effective electron affinity (NEA) have MTE values at room temperature by a factor of 2 lower than those of monocrystalline \textit{p}-GaAs(Cs,O) photocathodes. These low MTE values are due to the electr…

Redox Chemistry of LiCoO$_2$, LiNiO$_2$, and LiNi$_{1/3}$Mn$_{1/3}$Co$_{1/3}$O$_2$ Cathodes: Deduced via XPS, DFT DMFT, and Charge Transfer Multiplet Simulations
Ruiwen Xie, Maximilian Mellin, Wolfram Jaegermann, Jan P. Hofmann, Frank M. F. de Groot, Hongbin Zhang
https://arxiv.org/abs/2510.02875

Redox Chemistry of LiCoO$_2$, LiNiO$_2$, and LiNi$_{1/3}$Mn$_{1/3}$Co$_{1/3}$O$_2$ Cathodes: Deduced via XPS, DFT+DMFT, and Charge Transfer Multiplet Simulations
Understanding the evolution of the physicochemical bulk properties during the Li deintercalation (charging) process is critical for optimizing battery cathode materials. In this study, we combine X-ray photoelectron spectroscopy (XPS), density functional theory plus dynamical mean-field theory (DFT+DMFT) calculations, and charge transfer multiplet (CTM) model simulations to investigate how hybridization between transition metal (TM) 3d and oxygen 2p orbitals evolves with Li deintercalation. Bas…

A physics-informed neural network approach to the point defect model for electrochemical oxide film growth
Mohid Farooqi, Ingmar B\"osing, Conrad G. Tetsassi Feugmo
https://arxiv.org/abs/2510.02872

A physics-informed neural network approach to the point defect model for electrochemical oxide film growth
Physics-informed neural networks (PINNs) offer a novel AI-driven framework for integrating physical laws directly into neural network models, facilitating the solution of complex multiphysics problems in materials engineering. This study systematically explores the application of PINNs to simulate oxide film layer growth in halide-free solutions using the point defect model (PDM). We identify and analyze four key failure modes in this context: imbalanced loss components across different physica…

Photovoltaic Performance of a Rotationally Faulted Multilayer Graphene/n-Si Schottky Junction
Hojun Im, Masahiro Teraoka
https://arxiv.org/abs/2510.02786 https://

Photovoltaic Performance of a Rotationally Faulted Multilayer Graphene/n-Si Schottky Junction
We report the fabrication and photovoltaic performance of a rotationally faulted multilayer graphene (rf-MLG)/n-Si Schottky junction device. A thickness-controlled rf-MLG is synthesized using a 5 μm Ni foil catalyst via the chemical vapor deposition method and transferred to the n-Si substrate via a polymer-free process, enabling facile and cost-effective fabrication. The device demonstrates an ideality factor of 1.67, a rectification factor of approximately 4x10^5 at {\pm}1.0 V, and a Schottk…

Kolmogorov-Arnold Networks in Thermoelectric Materials Design
Marco Fronzi, Michael J. Ford, Kamal Singh Nayal, Olexandr Isayev, Catherine Stampfl
https://arxiv.org/abs/2510.02681

Kolmogorov-Arnold Networks in Thermoelectric Materials Design
The discovery of high-performance thermoelectric materials requires models that are both accurate and interpretable. Traditional machine learning approaches, while effective at property prediction, often act as black boxes and provide limited physical insight. In this work, we introduce Kolmogorov--Arnold Networks (KANs) for the prediction of thermoelectric properties, focusing on the Seebeck coefficient and band gap. Compared to multilayer perceptrons (MLPs), KANs achieve comparable predictive…

Improper-proper ferroelectric competition as a mechanism for multistate polarisation and ferrielectric-like behaviour
Cameron A. M Scott, Finlay D. Morrison, Nicholas. C. Bristowe
https://arxiv.org/abs/2510.02604

Improper-proper ferroelectric competition as a mechanism for multistate polarisation and ferrielectric-like behaviour
In this paper, we re-explore a simple textbook Landau model describing improper ferroelectricity and show that in the limit where both proper and improper instabilities exist and compete, improper ferroelectrics can display switching between multiple polarisation states. Using first principles calculations we highlight how the hexagonal tungsten bronze materials may be an archetypal case, with the possibility to switch between improper and proper phases. The resulting functional characteristics…

The line bundle regime and the scale-dependence of continuum dislocation dynamics
Joseph Pierre Anderson, Anter El-Azab
https://arxiv.org/abs/2510.02575 https://

The line bundle regime and the scale-dependence of continuum dislocation dynamics
Continuum dislocation dynamics (CDD) has become the state-of-the-art theoretical approach for mesoscale dislocation plasticity of metals. Within this approach, there are multiple CDD theories that can all be derived from the principles of statistical mechanics. In these theories density-based measures are used to represent dislocation lines. Establishing these density measures requires some level of coarse graining with the result of losing track of some parts of the dislocation population due …

Active-Learning Inspired Ab Initio Theory-Experiment Loop Approach for Management of Material Defects: Application to Superconducting Qubits
Sarvesh Chaudhari, Cristobal Mendez, Rushil Choudhary, Tathagata Banerjee, Maciej Olszewski, Jadrien Paustian, Jaehong Choi, Zhaslan Baraissov, Raul Hernandez, David Muller, Britton Plourde, Gregory Fuchs, Valla Fatemi, Tomas Arias

Active-Learning Inspired Ab Initio Theory-Experiment Loop Approach for Management of Material Defects: Application to Superconducting Qubits
Surface oxides are associated with two-level systems (TLSs) that degrade the performance of niobium-based superconducting quantum computing devices. To address this, we introduce a predictive framework for selecting metal capping layers that inhibit niobium oxide formation. Using DFT-calculated oxygen interstitial and vacancy energies as thermodynamic descriptors, we train a logistic regression model on a limited set of experimental outcomes to successfully predict the likelihood of oxide forma…

Epitaxially-stabilized growth of w\"ustite FeO on 4H-SiC
Faisal Kimbugwe, Marzieh Baan, Alexandra Fonseca Montenegro, Roberto C Myers, Tyler J Grassman
https://arxiv.org/abs/2510.02531

Epitaxially-stabilized growth of wüstite FeO on 4H-SiC
Iron(II) monoxide (FeO) is thermodynamically stable in the halite (wüstite) structure only at elevated temperatures in a typically non-stoichiometric, Fe-deficient, Fe$_{1-z}$O form that tends to phase separate and/or transform into metallic $α$-Fe and magnetite Fe$_3$O$_4$ at ambient conditions. Here we report on the successful growth of up to 180 nm thick $(111)$-oriented FeO heteroepitaxial films on slightly lattice-matched 4H-SiC$(0001)$ using molecular beam epitaxy (MBE). The films have …

Spin polarization engineering in $d$-wave altermagnets
Mohsen Yarmohammadi, Marco Berritta, Marin Bukov, Libor \v{S}mejkal, Jacob Linder, Peter M. Oppeneer
https://arxiv.org/abs/2510.02452

Spin polarization engineering in $d$-wave altermagnets
Altermagnets host unconventional spin-polarized bands despite zero net magnetization, but controlling their spin structure remains challenging. We propose a multi-field approach to engineer spin polarization in $d$-wave altermagnets using gating, optical driving, and in-plane electric fields, which enable tunable and switchable polarizations along multiple directions. Optical driving induces out-of-plane ($z$) polarization, while gating and in-plane fields generate $x$- and $y$-polarizations vi…

Slow-phonon control of spin Edelstein effect in Rashba $d$-wave altermagnets
Mohsen Yarmohammadi, Jacob Linder, James K. Freericks
https://arxiv.org/abs/2510.02451 https://

Slow-phonon control of spin Edelstein effect in Rashba $d$-wave altermagnets
Altermagnets have zero net magnetization yet feature spin-split bands that host spin-polarized states. Here, we investigate how slow lattice vibrations (phonons) influence both the intrinsic and externally induced spin polarizations in two-dimensional $d$-wave altermagnets. For the induced spin polarizations, we employ a Rashba continuum model with electron-phonon coupling (EPC) treated at the static-Holstein level and analyze the spin Edelstein effect using the Kubo linear-response formalism. …

[2025-10-06 Mon (UTC), 15 new articles found for cond-mat.mtrl-sci Materials Science]
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Strain Effects on Electronic Properties of Cobalt-Based Coordination Nanosheets
Kento Nishigomi, Yu Yi, Souren Adhikary, Kazuhito Tsukagoshi, Katsunori Wakabayashi
https://arxiv.org/abs/2510.03549

Strain Effects on Electronic Properties of Cobalt-Based Coordination Nanosheets
We theoretically study the strain effects on the electronic properties of cobalt-based benzenehexathiol (CoBHT) coordination nanosheets using first-principles calculations. Two distinct crystal structures, high-density structure (HDS) and low-density structure (LDS), are explored. Our results reveal that HDS behaves as a metal, while LDS exhibits semiconducting. Spin-polarized electronic band structures highlight the presence of energy band structures of Kagome lattice, and the incl…

Bloch Oscillations and Landau-Zener Transitions in Flat-Band Lattices with Quadratic and Linear Band Touchings
Chenhaoyue Wang, Carlos J. Garcia-Cervera, Amartya S. Banerjee
https://arxiv.org/abs/2510.03530

Bloch Oscillations and Landau-Zener Transitions in Flat-Band Lattices with Quadratic and Linear Band Touchings
Bloch oscillations (BOs) describe the coherent oscillatory motion of electrons in a periodic lattice under a constant external electric field. Deviations from pure harmonic wave packet motion or irregular Bloch oscillations can occur due to Zener tunneling (Landau-Zener Transitions or LZTs), with oscillation frequencies closely tied to interband coupling strengths. Motivated by the interplay between flat-band physics and interband coupling in generating irregular BOs, here we investigate these …

[2025-10-07 Tue (UTC), 25 new articles found for cond-mat.mtrl-sci Materials Science]
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