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The effective quasistatic conductivity of composite polymeric electrolytes is studied in terms of a hard-core--penetrable-layer model. Used to incorporate the interface phenomena (such as amorphization of the polymer matrix around filler…

Materials Science · Physics 2019-11-05 M. Ya. Sushko , A. K. Semenov

Thermal conductivity $\kappa$ of MgO plays a fundamental role in understanding the thermal evolution and mantle convection in the interior of terrestrial planets. However, previous theoretical calculations deviate from each other and the…

Earth and Planetary Astrophysics · Physics 2025-02-17 Rong Qiu , Qiyu Zeng , Ke Chen , Xiaoxiang Yu , Jiayu Dai

Accurate prediction of lattice thermal conductivity ($\kappa_l$) in strongly anharmonic materials requires renormalized interatomic force constants (IFCs) and appropriate incorporation of diagonal and off-diagonal contributions and…

Materials Science · Physics 2025-12-02 Ashis Kundu , Florian Knoop , Igor A. Abrikosov

We study the conduction of heat across a narrow solid strip trapped by an external potential and in contact with its own liquid. Structural changes, consisting of addition and deletion of crystal layers in the trapped solid, are produced by…

Soft Condensed Matter · Physics 2015-06-25 Debasish Chaudhuri , Abhishek Chaudhuri , Surajit Sengupta

Using molecular dynamics simulations, we study supercritical fluids near the gas-liquid critical point under heat flow in two dimensions. We calculate the steady-state temperature and density profiles. The resultant thermal conductivity…

Statistical Mechanics · Physics 2009-11-10 Toshiyuki Hamanaka , Ryoichi Yamamoto , Akira Onuki

As the interface between human and machine becomes blurred, hydrogel incorporated electronics and devices have emerged to be a new class of flexible/stretchable electronic and ionic devices due to their extraordinary properties, such as…

Soft Condensed Matter · Physics 2017-05-04 Ni Tang , Zhan Peng , Rulei Guo , Meng An , Xiaobo Li , Nuo Yang , Jianfeng Zang

We have studied the thermal conductivity $\kappa$ on single crystalline samples of the antiferromagnetic monolayer cuprates R$_2$CuO$_4$ with R = La, Pr, Nd, Sm, Eu, and Gd. For a heat current within the CuO$_2$ planes, i.e. for…

Strongly Correlated Electrons · Physics 2009-11-11 K. Berggold , T. Lorenz , J. Baier , M. Kriener , D. Senff , H. Roth , A. Severing , H. Hartmann , A. Freimuth , S. Barilo , F. Nakamura

The thermodynamic behavior of collapse transition in a fully flexible coarse-grained model of energy polydisperse polymer (EPP), a statistical model of random heteropolymer, is investigated in an implicit solvent by means of molecular…

Soft Condensed Matter · Physics 2025-03-04 Thoudam Vilip Singh , Lenin S. Shagolsem

Large-scale simulations of thermal welding of polymers are performed to investigate the rise of mechanical strength at the polymer-polymer interface with the welding time. The welding process is in the core of integrating polymeric elements…

Soft Condensed Matter · Physics 2012-11-30 Ting Ge , Flint Pierce , Dvora Perahia , Gary S. Grest , Mark O. Robbins

We measure hole transport in poly(3-hexylthiophene) field effect transistors with channel lengths from 3 $\mu$m down to 200 nm, from room temperature down to 10 K. Near room temperature effective mobilities inferred from linear regime…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 B. H. Hamadani , D. Natelson

We performed extensive molecular dynamics simulations to obtain pressure-density phase diagram, orientational order parameter, pair correlation functions and translational diffusion coefficients of Gay-Berne fluids. Different sets of…

We compute the heavy quark momentum diffusion coefficient $\kappa$ using QCD kinetic theory for a system going through bottom-up isotropization in the initial stages of a heavy ion collision. We find that the values of $\kappa$ are within…

High Energy Physics - Phenomenology · Physics 2024-02-08 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

In this work, the effects of Si/Al ratio and moisture content on thermal transport in sustainable geopolymers has been comprehensively investigated by using the molecular dynamics simulation. The thermal conductivity of geopolymer systems…

Soft Condensed Matter · Physics 2024-05-01 Wenkai Liu , Shenghong Ju

Thermal transport properties of amorphous carbon has attracted increasing attention due to its extreme thermal properties: It has been reported to have among the highest thermal conductivity for bulk amorphous solids up to $\sim$ 37…

Disordered Systems and Neural Networks · Physics 2024-05-14 Jaeyun Moon , Zhiting Tian

The temperature dependence of conductivity of partially dehydrochlorinated PVC films, containing in their macromolecules chains of polyene-conjugated bonds (PCB) and representing copolymer PVC-Polyacetylene. In samples with excess of some…

Soft Condensed Matter · Physics 2013-12-30 D. V. Vlasov , V. I. Kryshtob , T. V. Vlasova , L. A. Apresyan , S. I. Rasmagin

The finite size effects of the thermal conductivity $\kappa$ have been studied in the phonon space. It is found that only a few phonon modes are selected to take part in the thermal transport when the size $L$ of the system is decreased.…

Mesoscale and Nanoscale Physics · Physics 2016-04-22 Li Wan

This is the first study of the effect of pressure on transition metal dichalcogenides intercalated by atoms that order magnetically. Co$_{1/3}$NbS$_2$ is a layered system where the intercalated Co atoms order antiferromagnetically at T$_N$…

Strongly Correlated Electrons · Physics 2011-10-28 N. Barišić , I. Smiljanić , P. Popčević , A. Bilušić , E. Tutiš , A. Smontara , H. Berger , J. Jaćimović , O. Yuli , L. Forró

Let $\Omega\subset\R^n$, $n\ge 3$, be a smooth bounded domain and consider a coupled system in $\Omega$ consisting of a conductivity equation $\nabla \cdot \gamma(x) \nabla u(t,x)=0$ and an anisotropic heat equation…

Analysis of PDEs · Mathematics 2010-12-15 Katsiaryna Krupchyk , Matti Lassas , Samuli Siltanen

-We have performed a new efficient method to calculate numerically the transport coefficients at high temperature. The collision theory was treated to study singularities that occur when evaluating the collision cross section. The transport…

Plasma Physics · Physics 2015-01-30 Ali Mahfouf , Pascal André , Géraldine Faure

The temperature jump problem in polyatomic gas flow with translational/internal non-equilibrium is investigated, where the internal temperature is excited by volumetric heating, while the translational temperature is heated via the…

Fluid Dynamics · Physics 2024-08-20 Bin Hu , Lei Wu