标题： 电子角动量边缘积累的量子动力学解剖学 显示英文标题

标题： Quantum Kinetic Anatomy of Electron Angular Momenta Edge Accumulation

摘要： 控制电子的自旋和轨道自由度在过去二十年中一直是主要的研究重点，因为它支撑了磁化强度的电操控。 利用最近引入的多带系统量子动力学理论 [T. Valet 和 R. Raimondi, Phys. Rev. B 111, L041118 (2025)]，我们概述了本征角动量线性响应如何被划分为带内和带间贡献。 专注于时间反演和倒置对称金属，我们表明自旋和轨道霍尔电流完全是带内的。 我们还揭示了边缘密度部分地，并在轨道情况下主要地，来源于一种新的带间机制。 我们讨论了这如何深刻影响对轨道边缘积累观测的解释，并对我们对电流诱导扭矩的理解有更广泛的意义。 显示英文摘要

摘要： Controlling electron's spin and orbital degrees of freedom has been a major research focus over the past two decades, as it underpins the electrical manipulation of magnetization. Leveraging a recently introduced quantum kinetic theory of multiband systems [T. Valet and R. Raimondi, Phys. Rev. B 111, L041118 (2025)], we outline how the intrinsic angular momenta linear response is partitioned into intraband and interband contributions. Focusing on time reversal and inversion symmetric metals, we show that the spin and orbital Hall currents are purely intraband. We also reveal that the edge densities originate partially, and in the orbital case mostly, from a new interband mechanism. We discuss how this profoundly impacts the interpretation of orbital edge accumulation observations, and has broader implications for our understanding of current induced torques.