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The uniform electron gas is a key model system in the description of matter, including dense plasmas and solid state systems. However, the simultaneous occurence of quantum, correlation, and thermal effects makes the theoretical description…

等离子体物理 · 物理学 2017-05-24 Simon Groth , Tobias Dornheim , Michael Bonitz

Thermoelectric devices that utilize the Seebeck effect convert heat flow into electrical energy and are highly desirable for the development of portable, solid state, passively-powered electronic systems. The conversion efficiencies of such…

材料科学 · 物理学 2015-01-06 Ruixiang Fei , Alireza Faghaninia , Ryan Soklaski , Jia-An Yan , Cynthia Lo , Li Yang

We establish an analytical criterion for dynamical thermalization within harmonic systems, applicable to both classical and quantum models. Specifically, we prove that thermalization of various observables, such as particle energies in…

Static flexoelectric effect in a finite sample of a solid is addressed in terms of phenomenological theory for the case of a thin plate subjected to bending. It has been shown that despite an explicit asymmetry inherent to the bulk…

材料科学 · 物理学 2015-05-30 Alexander K. Tagantsev , Alexander S. Yurkov

The dielectric response and structural properties of finite-temperature electron liquids are central to accurately describing the physical behavior of electronic systems. This study presents a robust analytical model for the static…

等离子体物理 · 物理学 2026-03-19 Chengliang Lin , Yong Hou , Jianmin Yuan , Yong Wu , Jianguo Wang

A generalization of symmetrized density matrices in combination with the technique of generating functions allows to calculate the partition function of identical particles in a parabolic confining well. Harmonic two-body interactions…

凝聚态物理 · 物理学 2009-10-28 F. Brosens , J. T. Devreese , L. F. Lemmens

Thermodynamical arguments are known to be useful in the construction of physically motivated Lyapunov functionals for nonlinear stability analysis of spatially homogeneous equilibrium steady states in thermodynamically isolated systems.…

统计力学 · 物理学 2019-08-06 Miroslav Bulíček , Josef Málek , Vít Průša

The inductance/impedance due to thin metallic structures in non-destructive testing (NDT) is difficult to evaluate. In particular, in Finite Element Method (FEM) eddy current simulation, an extremely fine mesh is required to accurately…

信号处理 · 电气工程与系统科学 2019-05-31 Wuliang Yin , Jiawei Tang , Mingyang Lu , Hanyang Xu , Ruochen Huang , Qian Zhao , Zhijie Zhang , Anthony Peyton

The thermoelectric effect is the generation of an electrical voltage from a temperature gradient in a solid material due to the diffusion of free charge carriers from hot to cold. Identifying materials with large thermoelectric response is…

强关联电子 · 物理学 2018-05-31 Brian Skinner , Liang Fu

In a multi-terminal device the (electronic) heat and charge currents can follow different paths. In this paper we introduce and analyse a class of multi-terminal devices where this property is pushed to its extreme limits, with charge $and$…

Statistical physics in equilibrium grants us one of its most powerful tools: the equipartition principle. It states that the degrees of freedom of a mechanical system act as a thermometer: temperature is equal to the mean variance of their…

统计力学 · 物理学 2020-08-26 Alex Fontana , Richard Pedurand , Ludovic Bellon

In nonequilibrium systems with uncoupled currents, the thermodynamic affinity determines the direction of currents, quantifies dissipation, and constrains current fluctuations. However, these properties of the thermodynamic affinity do not…

统计力学 · 物理学 2025-04-11 Adarsh Raghu , Izaak Neri

Industrial processes release substantial quantities of waste heat, which can be harvested to generate electricity. At present, the conversion of low grade waste heat to electricity relies solely on thermoelectric materials, but such…

应用物理 · 物理学 2021-01-27 Daniel Dzekan , Anja Waske , Kornelius Nielsch , Sebastian Fähler

Experiments show that all the derivatives of the thermo-physical variables are nearly constant. The constant value of the derivatives indicates linear relationship between the variables. Neither the volume coefficient of thermal expansion…

化学物理 · 物理学 2007-05-23 Jozsef Garai

The unusual electronic states found in topological materials can enable a new generation of devices and technologies, yet a long-standing challenge has been finding materials without deleterious parallel bulk conduction. This can arise…

材料科学 · 物理学 2020-11-05 Matthew Brahlek

We discuss contributions to the thermopower in an electron fluid. A simple argument based on Newton's second law with the pressure gradient as the force suggests that the thermopower is given by a thermodynamic derivative, viz., the entropy…

统计力学 · 物理学 2024-01-22 J. Amarel , D. Belitz , T. R. Kirkpatrick

Electric power may, in principle, be generated in a highly efficient manner from heat created by focused solar irradiation, chemical combustion, or nuclear decay by means of thermionic energy conversion. As the conversion efficiency of the…

材料科学 · 物理学 2013-08-21 S. Meir , C. Stephanos , T. H. Geballe , J. Mannhart

We study the non-equilibrium thermodynamics of a single particle with two available energy levels, in contact with a classical (Maxwell-Boltzmann) or quantum (Bose-Einstein) heat bath. The particle can undergo transitions between the levels…

统计力学 · 物理学 2015-05-30 Niraj Kumar , Christian Van den Broeck , Massimiliano Esposito , Katja Lindenberg

We explore layered strongly correlated materials as a platform to identify and control unconventional heat transfer phenomena. We demonstrate that these systems can be tailored to sustain a wide spectrum of heat transport regimes, ranging…

强关联电子 · 物理学 2021-11-29 Giacomo Mazza , Marco Gandolfi , Massimo Capone , Francesco Banfi , Claudio Giannetti

The search for materials with large thermopower is of great practical interest. Dirac and Weyl semimetals have recently proven to exhibit superior thermoelectric properties, particularly when subjected to a quantizing magnetic field. Here…

材料科学 · 物理学 2024-06-24 Poulomi Chakraborty , Aaron Hui , Grigory Bednik , Brian Skinner
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