半经典响应理论

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中文摘要：对电子响应性质的研究,如平衡态下的磁化率和非平衡态下的输运系数等,是早期固体理论发展的原初动力之一.当朴素的经典粒子观经由量子力学原理和多体作用的锤炼升华至半经典粒子观后,进一步辅以对几何相位和拓扑性的深刻认识,人们终获得理解响应性质的完善、准确、颇具物理直观性的半经典理论框架.文章将介绍基于现代的电子粒子观和几何相位的半经典响应理论这一基本框架,并摘选热电响应、自旋输运、非线性响应、外禀机制这四个重要研究方向中的一些代表性问题,来解释半经典响应理论的内涵并展示其在固体物理研究中的价值.

外文标题：Semiclassical response theory

外文摘要：The study of the response properties of electron systems,such as the magnetic susceptibility in equilibrium and various transport coefficients out of equilibrium,was one of the primal forces driving the early development of solid state physics.After the classical particle view of electrons was modified by quantum mechanics and the many-body effect and evolved into the modern semiclassical particle view,the semiclassical response theory was established with the further help of the deep insight into Hilbert-space geometry and topology,offering a complete,accurate and,most importantly,intuitive framework for discussing various response properties.In this article we introduce the semiclassical response theory using classical examples from four important aspects,namely,thermoelectric response,spin transport,nonlinear response,and extrinsic mechanisms.Its value in solid state physics will also be demonstrated.

外文关键词：

semiclassical dynamicsBerry curvatureemergent electromagnetic fieldthermoelectric transportEinstein relationthermal orbital magnetizationconserved spin currentOnsager's reciprocal relationelectromagnetic polarizabilitynonlinear Hall effectskew sc

作者：

牛谦、高阳、肖聪

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作者单位：

中国科学技术大学物理学院合肥 230026

澳门大学应用物理及材料工程研究院澳门 999078

关键词：

半经典动力学贝里曲率人工电磁场热电输运爱因斯坦关系热轨道磁化守恒自旋流昂萨格对易关系电磁极化率非线性霍尔效应偏斜散射散射横移

出版年：

2024

DOI：

10.7693/wl20240704