Tootfinder

Classical-to-Quantum Crossover in 2D TMD Field-Effect Transistors: A First-Principles Study via Sub-10 nm Channel Scaling Beyond the Boltzmann Tyranny
Yu-Chang Chen, Ken-Ming Lin
https://arxiv.org/abs/2508.02380

Classical-to-Quantum Crossover in 2D TMD Field-Effect Transistors: A First-Principles Study via Sub-10 nm Channel Scaling Beyond the Boltzmann Tyranny
Two-dimensional transition metal dichalcogenides present compelling prospects for next-generation low-power and high-frequency field-effect transistors. However, scaling 2D TMD FETs into the sub-10 nm regime remains challenging due to technical complexity. Moreover, short-channel effects in this length scale are not yet fully understood. In this work, we investigate the transport properties of 2D TMD nanojunctions with channel lengths from 12 down to 3 nm, using first-principles calculations th…

"GenAI art has already reached polyester status, and this is just the beginning. Despite all the techno-utopian promises, our brains see it as ersatz."
(Original title: GenAI is Our Polyester)
https://culture.ghost.io/genai-is-our-polyester/

GenAI is Our Polyester
The best way to understand generative AI art and aesthetics is to consider how previous "synthetics" lost value in the long-run For the first half of the 20th century, white-collar workers wore business shirts made from cotton or linen that wrinkled in the wash. Ironing them into a presentable shape

if you want to read the new translation of Capital, it's 50% off until May 31st, which means there is only half as much socially-necessary labor time embodied in it
https://press.princeton.edu/books/hardcover/9780691190075/capital

This https://arxiv.org/abs/2409.12829 has been replaced.
initial toot: https://mastoxiv.page/@a…

Altermagnetic Weyl node-network semimetals protected by spin symmetry
Symmetry protected topology has been studied extensively in the past twenty years, but the topology protected by spin symmetry has just begun to be studied. In this work, based on spin symmetry analysis, we propose that a class of Weyl nodal line semimetals is protected by the spin symmetry. Then, by the first-principles electronic structure calculations, we predict that both altermagnetic $\rm Nb_2FeB_2$ and $\rm Ta_2FeB_2$ are node-network semimetals protected by the spin symmetry. Moreover, …

Electron Excitation Probability in Dielectrics under Two-color Intense Laser Fields
Mizuki Tani, Kenichi L. Ishikawa, Tomohito Otobe
https://arxiv.org/abs/2507.01023

Electron Excitation Probability in Dielectrics under Two-color Intense Laser Fields
Two-color laser fields offer significantly enhanced control over electron excitation dynamics under ultrashort intense laser pulses compared to monochromatic fields. However, their strong nonlinearity necessitates computationally expensive first-principles calculations to accurately predict ionization dynamics. To overcome this challenge, we derive an analytical expression for the ionization rate in dielectrics subjected to intense two-color laser fields, refining the theoretical framework intr…

First-Principles Insights into Excitonic and Electron-Phonon Effects in van der Waals Heterostructures
Mohammad Ali Mohebpour, Carmine Autieri, Meysam Bagheri Tagani
https://arxiv.org/abs/2506.23570

First-Principles Insights into Excitonic and Electron-Phonon Effects in van der Waals Heterostructures
Motivated by the successful synthesis of isolated ZrS2 and HfS2 transition metal dichalcogenide (TMD) monolayers and inspired by their nearly identical lattice constants, we construct and investigate a vertical ZrS2/HfS2 van der Waals (vdW) heterostructure. Using first-principles calculations based on density functional theory (DFT) and many-body perturbation theory (MBPT), we explore its electronic, optical, and excitonic properties, with particular emphasis on excitonic effects and their temp…

"You can tell what happened — Google promised iNaturalist free money if they would just do something, anything, that had some generative AI in it. iNaturalist forgot why people contribute at all, and took the cash."
(Original title: Google bribes iNaturalist to use generative AI — volunteers quit in outrage)

Google bribes iNaturalist to use generative AI — volunteers quit in outrage
iNaturalist is a website that crowdsources pictures of plants and animals to help identify species. Its tagline is “A Community for Naturalists.” iNaturalist is administered by its own small charit…

I have my share of issues with Parkrose Permaculture, but she has a lot of things I do strongly agree with. I can't stress enough that you never dehumanize your enemies. You can respond appropriately to violence. You can defend yourself from them by any means necessary. But you do not dehumanize them. You always limit your response to the minimum necessary to defend yourself.
There are a number of former Nazi skins who became antifascists after realizing they were wrong. Those folks tend to be some of the most dedicated because they feel a debt, and some of the most knowledgeable because they were there. Coming out of these types of cults, police included, is hard and takes time. A lot of us don't have the ability to work with them. But some do.
By repeatedly humanizing your opponent, you can break some of them. The #Seattle Police Department was not defunded but saw a massive reduction in numbers because their morale was destroyed. Some people will never change. Some people are broken and feel like they need the power. But if you change one person's mind, even give them something to think about, it's a crack. If even one cop quits, that's one less trained gun pointed at you in the future.
The 18 year old marines and federalized national guard troops out there are literally kids. A lot of them came from poor communities. They are being used in a way they haven't been trained to do, doing things they (should) have been told are not legal. They joined to get out of poverty, to go to college, or to "defend the American people" (regardless of how misguided that is). Few, if any, of them joined to abuse people. They will be especially open to persuasion.
Remind those troops that they are carrying out illegal orders, that they are being called on to violate their oath to protect the constitution, that they are suppressing the free speech of the fellow Americans they swore to defend. Remind them that the people they could be illegally arresting now are just like their parents, their neighbors, their families, the friends who didn't join. Remind them that this is the first step. They will be called on to kill Americans if they let this keep going.
Remind them ICE sleeps in hotels while they sleep on the ground. Remind them that their drunk and incompetent leadership thinks of them as disposable tools. Remind them that some of these people are out protesting *for them* against cuts to the VA and other services. Remind them that the people they're defending refuse to make college free so they can recruit from poor schools. Remind them that they will always be welcome when they're ready to join the side of freedom and justice.
When you dehumanize your enemies, you unify them. When you humanize your enemies, you can divide them. There is no weapon available to us right now so powerful as compassion.
https://youtu.be/YtWOYUDMsBw

Challenges and opportunities in piezoelectric polymers: Effect of oriented amorphous fraction in ferroelectric semicrystalline polymers
Guanchun Rui, Elshad Allahyarov, Zhiwen Zhu, Yanfei Huang, Thumawadee Wongwirat, Qin Zou, Philip L. Taylor, Lei Zhu
https://arxiv.org/abs/2506.18722

Challenges and opportunities in piezoelectric polymers: Effect of oriented amorphous fraction in ferroelectric semicrystalline polymers
Despite extensive research on piezoelectric polymers since the discovery of piezoelectric poly(vinylidene fluoride) (PVDF) in 1969, the fundamental physics of polymer piezoelectricity has remained elusive. Based on the classic principle of piezoelectricity, polymer piezoelectricity should originate from the polar crystalline phase. Surprisingly, the crystal contribution to the piezoelectric strain coefficient d31 is determined to be less than 10%, primarily owing to the difficulty in changing t…

Unveiling two-dimensional electron systems on ultra-wide bandgap semiconductor $\mathrm{\beta}$-Ga$_2$O$_3$
Ryu Yukawa, Hiroshi Mizuseki, Suryo Santoso Putro, Y\'e-Jin L. Lee, Yuuki Masutake, Hinako Telengut, Boxuan Li, Hajime Yamamoto, Tadashi Abukawa, Junya Yoshida, Vladimir V. Kochurikhin, Taketoshi Tomida, Masanori Kitahara, Takahiko Horiai, Akira Yoshikawa, Nobuhiko Sarukura, Noriko Chikumoto, Toshihiko Shimizu, Marilou Cadatal-Raduban, Yoshiyuki Kawazoe, Ryuhei Kohno, Hiroshi…

Unveiling two-dimensional electron systems on ultra-wide bandgap semiconductor $\mathrmβ$-Ga$_2$O$_3$
Ultra-wide bandgap (UWBG) semiconductors promise to revolutionize power electronics, yet a fundamental understanding of their interfacial electronic structure has been hindered by the absence of direct experimental observation. Here, we report the first momentum-resolved observation of two-dimensional electron systems on a UWBG material, enabled by angle resolved photoemission spectroscopy (ARPES) on high-purity $β$-Ga$_2$O$_3$ single crystals. Alkaline-metal-induced electron doping forms an i…