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相关论文: Temperature Effects in the thermal conductivity of…

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This study investigates the effect of the ion-to-electron temperature ratio ($T_i/T_e$) on microturbulence driven transport in Quiescent H-mode (QH-mode) plasmas in the DIII-D tokamak. Utilizing the Gyrokinetic Toroidal Code (GTC) and the…

The thermoelectric power S and the thermal conductivity k of stoichiometric and vacancy-doped CaB6 have been measured between 5 and 300 K. The thermopower of both materials is surprisingly large at room temperature. Across the whole covered…

强关联电子 · 物理学 2007-05-23 K. Gianno' , A. V. Sologubenko , H. R. Ott , A. D. Bianchi , Z. Fisk

We emphasize the role of temperature in explaining the IV ovonic threshold switching curve of amorphous phase change materials. The Poole-Frankel conduction model is supplemented by considering effects of temperature on the conductivity in…

应用物理 · 物理学 2020-09-25 J C Martinez , Ronald A Coutu , Turja Nandy , R E Simpson

The plastic deformation processes that occur in a tensily deformed High Density Polyethylene specimen were studied from full-field strain and strain rate measurements obtained by 3D DIC (Digital Image Correlation).The tensile tests were…

软凝聚态物质 · 物理学 2018-12-27 Laurent Farge , Stéphane André , Julien Boisse

Data on the coupled influence of pressure and temperature on rock thermal conductivity remain limited. This study adapts a multi-anvil cubic press to enable steady-state thermal conductivity measurements under controlled in-situ conditions.…

地球物理 · 物理学 2025-10-21 Nima Haghighat , Hem B. Motra , Amir S. Sattari , Frank Wuttke

Carbon atomic chain, linear benzene polymers, and carbon nanothreads are all one-dimensional (1D) ultrathin carbon structures. They possess excellent electronic and mechanical properties; however, their thermal transport properties have…

材料科学 · 物理学 2020-01-08 Jing Xue , Yuee Xie1 , Qing Peng , Yuanping Chen

We present an ab-initio study of the temperature dependent elastic constants of BAs, a semiconductor that exhibits ultra-high thermal conductivity and is under investigation for thermal management in electronics. We test the consistency of…

材料科学 · 物理学 2020-07-15 Cristiano Malica , Andrea Dal Corso

By using non-equilibrium molecular dynamics simulations(NEMD), the modulation on temperature dependence of thermal conductivity of graphene phononic crystals (GPnCs) are investigated. It is found that the temperature dependence of thermal…

介观与纳米尺度物理 · 物理学 2016-06-22 Shiqian Hu , Meng An , Nuo Yang , Baowen Li

Optical and Hall-effect measurements have been performed on single crystals of Pb$_{0.77}$Sn$_{0.23}$Se, a IV-VI mixed chalcogenide. The temperature dependent (10--300 K) reflectance was measured over 40--7000 cm$^{-1}$ (5--870 meV) with an…

The thermal conductivity of the methane hydrate CH4 (5.75 H2O) was measured in the interval 2-140 K using the steady-state technique. The thermal conductivity corresponding to a homogeneous substance was calculated from the measured…

无序系统与神经网络 · 物理学 2009-11-10 A. I. Krivchikov , B. Ya. Gorodilov , O. A. Korolyuk , V. G. Manzhelii , H. Conrad , W. Press

Using molecular dynamics simulations in a planar graphene sheet, we investigate the temperature dependence of its mechanical behavior under uniaxial tensile stress applied either along the armchair or the zigzag direction. Stress-strain…

材料科学 · 物理学 2025-10-28 Sané Erasmus , Charalampos Skokos , George Kalosakas

We conducted a comprehensive study on the compositional dependence of the anomalous Nernst effect (ANE) in amorphous (amo.) Tb-Fe-Co thin films. The anomalous Nernst coefficient strongly depends not only on the Tb composition but also on…

材料科学 · 物理学 2025-12-22 Hiroto Imaeda , Tsunehiro Takeuchi , Hiroyuki Awano , Kenji Tanabe

Recent Angle-Resolved Photo-emission Spectroscopy (ARPES) experiments [Phys. Rev. Lett. 130, 046402 (2023)] on PdTe, a 3D-Dirac semimetal and a superconductor with the transition temperature Tc ~ 4.3 K, have revealed compelling evidence of…

超导电性 · 物理学 2024-08-20 C. S. Yadav , Sudeep Kumar Ghosh , Pankaj Kumar , A. Thamizhavel , P. L. Paulose

Carbon spheres (CS) with diameters in the range $2 - 10 \mu m$ were prepared via hydrolysis of a sucrose solution at $200^o C,$ and later annealed in $N_2$ at $800^o C.$ The spheres were highly conducting but difficult to process into thin…

We consider a polymer, with monomer locations modeled by the trajectory of a Markov chain, in the presence of a potential that interacts with the polymer when it visits a particular site 0. We assume that probability of an excursion of…

概率论 · 数学 2007-05-23 Kenneth S. Alexander

Plasmonic excitations behave fundamentally different in layered materials in comparison to bulk systems. They form gapless modes, which in turn couple at low energies to the electrons. Thereby they can strongly influence superconducting…

超导电性 · 物理学 2018-03-14 M. Rösner , R. E. Groenewald , G. Schönhoff , J. Berges , S. Haas , T. O. Wehling

We studied the phononic heat transfer through an atomic dielectric wire with both infinite and finite lengths by using a model Hamiltonian approach. At low temperature under ballistic transport, the thermal conductance contributed by each…

凝聚态物理 · 物理学 2009-10-31 A. Buldum , S. Ciraci , C. Y. Fong

In the framework of the suggested in [arxiv:1803.08247 [cond-mat.mtrl-sci]] statistical theory of the equilibrium flow stress, including yield strength, ${\sigma}_y$, of polycrystalline materials under quasi-static (in case of tensile…

材料科学 · 物理学 2020-01-01 Alexander A. Reshetnyak

The viscoelastic properties of thin polymeric films represent a central issue, especially for nanotechnological applications. In particular, it is highly relevant the dependence of viscoelasticity on the temperature. For polystyrene it is…

Proton transport property is studied by modelling the intermolecular pair correlation functions of the proton ion with the electrode and the electrolyte of a polymer electrolyte fuel cell (PEMFC) by using Materials-Studio and then applying…

材料科学 · 物理学 2023-05-05 S. S. Awulachew , K. N. Nigussa