Tootfinder

China unveils its new 'graphite bomb' — here's how they work: https://benborges.xyz/2025/06/30/china-unveils-its-new-graphite.html

High mechanical strength Si anode synthesis with interlayer bonded expanded graphite structure for lithium-ion batteries
Wenhui Lai, Jong Hak Lee, Lu Shi, Yuqing Liu, Yanhui Pu, Yong Kang Ong, Carlos Limpo, Ting Xiong, Yifan Rao, Chorng Haur Sow, Barbaros \"Ozyilmaz
https://arxiv.org/abs/2506.20189

High mechanical strength Si anode synthesis with interlayer bonded expanded graphite structure for lithium-ion batteries
Despite advancements in silicon-based anodes for high-capacity lithium-ion batteries, their widespread commercial adoption is still hindered by significant volume expansion during cycling, especially at high active mass loadings crucial for practical use. The root of these challenges lies in the mechanical instability of the material, which subsequently leads to the structural failure of the electrode. Here, we present a novel synthesis of a composite combining expanded graphite and silicon nan…

Ultra-low damping of the translational motion of a composite graphite particle in a magneto-gravitational trap
Connor E. Murphy (Department of Physics, Montana State University, Bozeman, MT), Cody Jessup (Department of Physics, Montana State University, Bozeman, MT), Tahereh Naderishahab (Department of Physics, Montana State University, Bozeman, MT), Leonardo R. Werneck (Department of Physics, University of Idaho, Moscow, ID), Zachariah B. Etienne (Department of Physics, University of …

Ultra-low damping of the translational motion of a composite graphite particle in a magneto-gravitational trap
We demonstrate an ultra-low dissipation, one-dimensional mechanical oscillator formed by levitating a millimeter-scale composite graphite particle in a room-temperature magneto-gravitational trap. The trap's magnetic field geometry, based on a linear quadrupole, eliminates first-order field gradients in the axial direction, yielding a low oscillation frequency with negligibly low eddy-current losses. Direct ring-down measurements under vacuum compare the damping of the vertical and axial motion…

Estimation of nanometer-thickness layer of 6B graphite: an experimental activity to study Ohm's law in higher education
Paulo Henrique Eleuterio Falsetti, Andr\'e Coelho da Silva, Leonardo Geraldino da Silva, Douglas Mendes da Silva Del Duque, Murilo Antonio Menegati, Bruno Fernando Gianelli, Vagner Romito de Mendon\c{c}a, Idelma Aparecida Alves Terra
h…

Estimation of nanometer-thickness layer of 6B graphite: an experimental activity to study Ohm's law in higher education
Ohm's law is crucial for understanding electrical circuits and conductive materials. Formulated by Georg Simon Ohm in the 19th century, it describes the direct proportional relationship between electric voltage and electric current in ohmic conductors. Despite its apparent simplicity, the literature has pointed out that students at different educational levels have difficulty understanding it, especially due to the abstraction associated with the concepts of electric voltage, electric current, …

China's state TV broadcaster has revealed details of a new
"graphite bomb"
that can cause a "complete loss of electricity" across an area of 10,000 square meters,
or knock out entire power stations, the South China Morning Post reported.
An animated video released by China's CCTV showed a missile being launched from a ground-based launcher
and then flying to a target where it releases 90 small submunitions.
They then bounce on t…

Video teases new Chinese blackout bomb that can knock out enemy power stations
Animation shared by state broadcaster shows what appears to be graphite bomb designed to disrupt command and control systems.

The impact of organic hazes and graphite on the observation of CO2-rich sub-Neptune atmospheres
Haixin Li, Chao He, Sai Wang, Zhengbo Yang, Yu Liu, Yingjian Wang, Xiao'ou Luo, Sarah E. Moran, Cara Pesciotta, Sarah M. H\"orst, Julianne I. Moses, V\'eronique Vuitton
https://arxiv.org/abs/2508.07161…

The impact of organic hazes and graphite on the observation of CO2-rich sub-Neptune atmospheres
Many sub-Neptune and super-Earth exoplanets are expected to develop metal-enriched atmospheres due to atmospheric loss processes such as photoevaporation or core-powered mass loss. Thermochemical equilibrium calculations predict that at high metallicity and a temperature range of 300-700 K, CO2 becomes the dominant carbon species, and graphite may be the thermodynamically favored condensate under low-pressure conditions. Building on prior laboratory findings that such environments yield organic…

Paragon spyware activity found on more journalists’ devices https://therecord.media/paragon-graphite-spyware-journalists-apple-devices-citizen-lab

Researchers find evidence that a second fanpage.it journalist, along with an anonymous European journalist, were targeted using Graphite spyware (The Guardian)
https://www.theguardian.com/media/2025/jun/12/…

Correlative angstrom-scale microscopy and spectroscopy of graphite-water interfaces
Lalith Krishna Samanth Bonagiri, Diana M. Arvelo, Fujia Zhao, Jaehyeon Kim, Qian Ai, Shan Zhou, Kaustubh S. Panse, Ricardo Garcia, Yingjie Zhang
https://arxiv.org/abs/2506.09908

Correlative angstrom-scale microscopy and spectroscopy of graphite-water interfaces
Water at solid surfaces is key for many processes ranging from biological signal transduction to membrane separation and renewable energy conversion. However, under realistic conditions, which often include environmental and surface charge variations, the interfacial water structure remains elusive. Here we overcome this limit by combining three-dimensional atomic force microscopy and interface-sensitive Raman spectroscopy to characterize the graphite-water interfacial structure in situ. Throug…

Ritter gegen Drache
Graphite Prime lässt in #Knock #4 Ersteren gegen Letzteren antreten. Das System ist OSE. FIGHT! #pnpde

Replaced article(s) found for cond-mat.mes-hall. https://arxiv.org/list/cond-mat.mes-hall/new
[1/1]:
- Grain boundary-limited thermal transport in suspended thin graphite across an unexplored thicknes...
Wonjae Jeon, Yu Pei, Xun Li, Lucas Lindsay, Sangyeop Lee, Renkun Ch…

This https://arxiv.org/abs/2411.11832 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Effects of Metallicity on Graphite, TiC, and SiC Condensation in Carbon Stars
From transmission electron microscopy and other laboratory studies of presolar grains, the implicit condensation sequence of carbon-bearing condensates in circumstellar envelopes of carbon stars is (from first to last) TiC-graphite-SiC. We use thermochemical equilibrium condensation calculations and show that the condensation sequence of TiC, graphite, and SiC depends on metallicity in addition to C/O ratio and total pressure. Calculations were performed for a characteristic carbon star ratio o…

Anomalous Sodium Insertion in Highly Oriented Graphite: Thermodynamics, Kinetics and Evidence for Two-Sided Intercalation
Chuanhai Gan, Chuanlian Xiao, Hongguang Wang, Peter A. van Aken, Rotraut Merkle, Sebastian Bette, Bettina V. Lotsch, Joachim Maier
https://arxiv.org/abs/2508.08806

Anomalous Sodium Insertion in Highly Oriented Graphite: Thermodynamics, Kinetics and Evidence for Two-Sided Intercalation
The difficult intercalation of sodium (Na) into graphite is studied by systematic and long-time investigations (of up to 2 years) using highly oriented pyrolytic graphite (HOPG). By studying chemical insertion of solid, liquid and gaseous Na at low and high temperatures (LT, HT) as well as using electrochemical insertion at 25 degree Celsius into uncoated and coated HOPG, it became clear that insertion equilibrium requires HT. On decreasing chemical intercalation temperature from HT (500 degree…

Managed to repair my digital piano. Two of the c's stopped working. Turns out the fix was easy: I used some 9B pencil to rub the connectors on the piano, as they apparently work with graphite. There was a silicone bit I could take off to get to the connector.
Opening the piano up was by far the hardest part of this repair.
#RightToRepair

Exchange-driven self-diffusion of nanoscale crystalline parahydrogen clusters on graphite
K. M. Kolevski, M. Boninsegni
https://arxiv.org/abs/2508.10883 https://

Exchange-driven self-diffusion of nanoscale crystalline parahydrogen clusters on graphite
Computer simulations yield evidence of superfluid behavior of nanoscale size clusters of parahydrogen adsorbed on a graphite substrate at low temperature ($T\lesssim 0.25 \text{ K}$). Clusters with a number of molecules between 7 and 12 display concurrent superfluidity and crystalline order, reflecting the corrugation of the substrate. Remarkably, it is found that specific clusters with a number of molecules ranging between 7 and 12 self-diffuse on the surface like free particles, despite the s…

This https://arxiv.org/abs/2501.00553 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_nuc…

Angular differential and elemental fragmentation cross sections of a $400\,\text{MeV/nucleon}$ $^{16}\text{O}$ beam on a graphite target with the FOOT experiment
This paper presents the measurements of the angular differential cross sections for the forward production of He, Li, Be, B, C and N nuclei in the fragmentation process of a 400$\text{MeV/nucleon}$ $^{16}\text{O}$ beam interacting with a graphite target. Due to the limited data available in this energy regime, these measurements of nuclear fragmentation cross sections are relevant to improve nuclear interaction models for Particle Therapy and space radioprotection applications. The data analyze…

Towards construction of microscopic model for smart coating of a solid surface
O. Pizio
https://arxiv.org/abs/2506.14628 https://arxi…

Towards construction of microscopic model for smart coating of a solid surface
The density functional approach for classical associating fluids is used to explore the wetting phase diagrams for model systems consisting of water and graphite-like solid surfaces chemically modified by a small amount of grafted chain molecules. The water-like fluid model is adopted from the work of Clark et al. [Mol. Phys., 104, 3561 (2006)]. It very well describes the bulk water vapor-liquid coexistence. Each chain molecule consists of tangentially bonded hard sphere segments. We focus on t…

Formation of organic hazes in CO$_2$-rich sub-Neptune atmospheres within the graphite-stability regime
Sai Wang, Zhengbo Yang, Chao He, Haixin Li, Yu Liu, Yingjian Wang, Xiao'ou Luo, Sarah E. Moran, Cara Pesciotta, Sarah M. H\"orst, Julianne I. Moses, V\'eronique Vuitton, Laur\`ene Flandinet
https://arxiv.org/abs/2508.05974

Formation of organic hazes in CO$_2$-rich sub-Neptune atmospheres within the graphite-stability regime
Super-Earths and sub-Neptunes are the most common exoplanets, with a "radius valley" suggesting that super-Earths may form by shedding sub-Neptunes' gaseous envelopes. Exoplanets that lie closer to the super-Earth side of the valley are more likely to have lost a significant fraction of their original H/He envelopes and become enriched in heavier elements with CO$_2$ gaining in abundance. It remains unclear which types of haze would form in such atmospheres, potentially significantly affecting …

Revealing the Staging Structural Evolution and Li (De)Intercalation Kinetics in Graphite Anodes via Machine Learning Potential
Liqi Wang, Xuhe Gong, Zicun Li, Ruijuan Xiao, Hong Li
https://arxiv.org/abs/2508.06156

Revealing the Staging Structural Evolution and Li (De)Intercalation Kinetics in Graphite Anodes via Machine Learning Potential
Revealing the dynamic structural evolution and lithium transport properties during the charge/discharge processes is crucial for optimizing graphite anodes in lithium-ion batteries, enabling high stability and fast-charging performance. However, the dynamic coupling mechanisms among carbon layer kinetics, lithium (de)intercalation/diffusion, and defects regulation remain insufficiently understood. In this study, we developed a universal automated workflow based on machine learning potentials to…

Heating of a Molecular Cloud by a Primordial Black Hole
A. N. Melikhov, E. V. Mikheeva
https://arxiv.org/abs/2506.14595 https://arxiv…

Heating of a Molecular Cloud by a Primordial Black Hole
The heating of a molecular cloud by photons emitted by a primary black hole (PBH) located inside the cloud is considered. For graphite and silicate dust particles, the dependence of dust temperature on the distance from PBH is derived, along with the emission spectrum of dust particles. The obtained spectrum is compared with the sensitivity of the Millimetron Space Observatory for various values of concentration and size of dust particles and different PBH masses.

4D operando X-ray nano-holo-tomography reveals multiscale chemomechanics in Silicon-Graphite anode
Victor Vanpeene, Olga Stamati, Francois Cadiou, Quentin Jacquet, Julie Villanova, Sandrine Lyonnard
https://arxiv.org/abs/2508.06413

4D operando X-ray nano-holo-tomography reveals multiscale chemomechanics in Silicon-Graphite anode
Linking electrode microstructure to electrochemical performance is essential for optimizing Li-ion batteries. However, this requires mechanistic 4D observations at ultimate spatio-temporal scales, which remains elusive. Here we demonstrate the use of operando synchrotron X-ray nano-holo-tomography combined with Digital Volume Correlation to track chemomechanical dynamics at both particle (local) and electrode (averaged) scales. Quantitative scale-bridging image analysis is applied to a high-cap…

Direct Neutron Reactions in Storage Rings Utilizing a Supercompact Cyclotron Neutron Target
Ariel Tarife\~no-Saldivia, C\'esar Domingo-Pardo, Iris Dillmann, Yuri A. Litvinov
https://arxiv.org/abs/2508.15465

Direct Neutron Reactions in Storage Rings Utilizing a Supercompact Cyclotron Neutron Target
We propose a new approach for a high-density free-neutron target, primarily aimed at nuclear astrophysics reaction studies in inverse kinematics with radioactive ions circulating in a storage ring. The target concept integrates four key subsystems: a neutron production source driven by a supercompact cyclotron utilizing $^9$Be($p,xn$) reactions, an optimized moderator/reflector assembly using either heavy-water or beryllium oxide with a graphite reflector shell to thermalize fast neutrons, a cr…

Direct Reconstruction of Terahertz-driven Subcycle Electron Emission Dynamics
Jiakang Mao, Yushan Zeng, Hongyang Li, Liwei Song, Ye Tian, Ruxin Li
https://arxiv.org/abs/2507.02397

Direct Reconstruction of Terahertz-driven Subcycle Electron Emission Dynamics
While field-driven electron emission is theoretically understood down to the subcycle regime, its direct experimental temporal characterization using long-wavelength terahertz (THz) fields remains elusive. Here, by driving a graphite tip with phase-stable quasi-single-cycle THz pulses, we reveal distinct subcycle electron emission dynamics including: (1) At a carrier-envelope phase (CEP) near zero, spectral peaks scale linearly with THz field strength, characteristic of subcycle emission; (2) A…

Develoment of thin high-pressure-laminate RPC electrodes for future high-energy experiments
Kyong Sei Lee, Giuseppe Iaselli, Youngmin Jo, Minho Kang, Tae Jeong Kim, Dayron Ramos Lopez, Gabriella Pugliese
https://arxiv.org/abs/2506.03552

Develoment of thin high-pressure-laminate RPC electrodes for future high-energy experiments
In this R&D, an innovative method for producing thin high-pressure laminate (HPL) electrodes for resistive plate chambers (RPC) for future high-energy experiments is introduced. Instead of using thick phenolic HPL (2-mm thick Bakelite), which has been used for conventional RPC triggers, the RPC electrodes in the present study are constructed by bonding 500 μm-thick melamine-based HPL to a graphite-coated polycarbonate plate. A double-gap RPC prototype to demostrate the present technology has b…

Resonant interlayer coupling in NbSe$_2$-graphite epitaxial moir{\'e} superlattices
S. Mo, K. Kovalenka, S. Buchberger, B. K. Saika, A. Azhar, A. Rajan, A. Zivanovic, Y. -C. Yao, R. V. Belosludov, M. D. Watson, M. S. Bahramy, P. D. C. King
https://arxiv.org/abs/2506.00449

Resonant interlayer coupling in NbSe$_2$-graphite epitaxial moir{é} superlattices
Moir{é} heterostructures, created by stacking two-dimensional (2D) materials together with a finite lattice mismatch or rotational twist, represent a new frontier of designer quantum materials. Typically, however, this requires the painstaking manual assembly of heterostructures formed from exfoliated materials. Here, we observe clear spectroscopic signatures of moir{é} lattice formation in epitaxial heterostructures of monolayer (ML) NbSe$_2$ grown on graphite substrates. Our angle-resolved …

Covalently Integrated CNT@rGO for Superior Conductivity and Cycling Stability in Lithium-Ion Batterie
Junwen Tang, Jingbo Pang, Jie Wang, Huiming Liang, Ao Du, Long Kuang, Xiaoming Cai, Ming Qin, Cuixia Yan, Wu Zhou, Jinming Cai
https://arxiv.org/abs/2507.04296

Covalently Integrated CNT@rGO for Superior Conductivity and Cycling Stability in Lithium-Ion Batterie
The limitations of conventional conductive agents in lithium-ion batteries, such as carbon black and graphite flakes, have driven the search for high-performance alternatives. Carbon nanotubes (CNTs) and graphene offer exceptional conductivity and lower dosage requirements, but face challenges related to high costs and complex fabrication processes. Here, we report a simple and cost-effective one-step chemical vapor deposition (CVD) method for the ultra-high yield growth (7692.31%) of CNTs on a…

Polymorphism Crystal Structure Prediction with Adaptive Space Group Diversity Control
Sadman Sadeed Omee, Lai Wei, Sourin Dey, Jianjun Hu
https://arxiv.org/abs/2506.11332

Polymorphism Crystal Structure Prediction with Adaptive Space Group Diversity Control
Crystalline materials can form different structural arrangements (i.e. polymorphs) with the same chemical composition, exhibiting distinct physical properties depending on how they were synthesized or the conditions under which they operate. For example, carbon can exist as graphite (soft, conductive) or diamond (hard, insulating). Computational methods that can predict these polymorphs are vital in materials science, which help understand stability relationships, guide synthesis efforts, and d…

Direct laser ablation of 2D material films for fabricating multi-functional flexible and transparent devices
Yigit Sozen, Yu Kyoung Ryu, Javier Martinez, Andres Castellanos-Gomez
https://arxiv.org/abs/2506.03730

Direct laser ablation of 2D material films for fabricating multi-functional flexible and transparent devices
We present a scalable method for direct patterning of graphite and transition metal dichalcogenide (TMD) films on polycarbonate (PC) and other transparent substrates using fiber laser ablation. This process facilitates the fabrication of various functional devices, including strain gauges, supercapacitors, and photodetector arrays, without the need for photolithography or solvents, thereby simplifying device production and enhancing environmental sustainability. Utilizing roll-to-roll mechanica…

Vacuum Dealloyed Brass as Li-Metal Battery Current Collector: Effect of Zinc and Porosity
Eric V Woods, Xinren Chen, Shaolou Wei, Alisson Kwiatkowski da Silva, Ayman A El-Zoka, J Manoj Prabhakar, Tim M Schwarz, Yongqiang Kang, Leonardo S Aota, Mahander P Singh, Katja Angenendt, Ozge Ozgun, Matic Jovivcevic-Klug, Patricia Jovivcevic-Klug, Christian Bross, Jian Liu, Rene de Kloe, Gerhard Dehm, Stefan Zaefferer, Yug Joshi, Baptiste Gault

Vacuum Dealloyed Brass as Li-Metal Battery Current Collector: Effect of Zinc and Porosity
"Anode-free" lithium-metal batteries promise significantly higher energy density than conventional graphite-based lithium-ion batteries; however, lithium dendrite growth can lead to internal short circuits with associated safety risks. While porous current collectors can suppress dendrite growth, optimal porosity and composition remain unknown. Here, we show that the temperature during vapor phase dealloying (VPD) of alpha-brass (Cu63Zn37) controls the surface Zn concentration, decreasing from …

Intrinsic Layer-Dependent Surface Energy and Exfoliation Energy of van der Waals Materials
Lin-Lin Wang, Jiaqiang Yan, Yong Han, Claire C. Wang, Jian-Xiang Qiu, Su-Yang Xu, Adam Kaminski, Michael C. Tringides, Paul C. Canfield
https://arxiv.org/abs/2508.04898

Intrinsic Layer-Dependent Surface Energy and Exfoliation Energy of van der Waals Materials
Stacking and twisting 2D van der Waals (vdW) layers have become versatile platforms to tune electron correlation. These platforms rely on exfoliating vdW materials down to a single and few vdW layers. We calculate the intrinsic layer-dependent surface and exfoliation energies of typical vdW materials such as, graphite, h-BN, black P, MX$_2$ (M=Mo and W, X=S, Se and Te), MX (M=Ga and In, X=S, Se and Te), Bi$_2$Te$_3$ and MnBi$_2$Te$_4$ using density functional theory. For exchange-correlation fu…