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相关论文: Generalized Kubo formula for spin transport: A the…

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We revise the Kubo formula for the electric dc conductivity in the presence of spin-orbit coupling (SOC). We discover that each velocity operator that enters this formula differs from $\partial H/\partial \boldsymbol p$, where $H$ is the…

介观与纳米尺度物理 · 物理学 2024-03-12 I. A. Ado , M. Titov , Rembert A. Duine , Arne Brataas

Kubo formula is used to get the d.c conductance of a statistical ensemble of two-dimensional clusters of the square lattice in the presence of standard diagonal disorder, a uniform magnetic field and random magnetic fluxes. Working within a…

介观与纳米尺度物理 · 物理学 2009-10-31 J. A. Verges

Using recently developed tools from space-adiabatic perturbation theory, in particular the construction of a non-equilibrium almost stationary state, we give a new proof that the Kubo formula for the Hall conductivity remains valid beyond…

数学物理 · 物理学 2023-02-06 Giovanna Marcelli , Domenico Monaco

A fully relativistic description of the spin-orbit induced spin Hall effect is presented that is based on Kubo's linear response formalism. Using an appropriate operator for the spin current density a Kubo-St\v{r}eda-like equation for the…

We investigate the Drude model of spin dynamics in two-dimensional spin-orbit coupled systems. In the absence of an applied electric field, the spin aligns with the k-dependent effective magnetic field. The influence of disorder (the…

介观与纳米尺度物理 · 物理学 2020-12-14 Tsung-Wei Chen , Hsiu-Chuan Hsu

In model studies of the spin/anomalous Hall effect, effective Hamiltonians often serve as the starting point. However, a complete effective quantum theory contains not only the effective Hamiltonian but also the relation linking the…

介观与纳米尺度物理 · 物理学 2018-10-17 Cong Xiao , Bangguo Xiong , Fei Xue

The Hall conductivity given by the Kubo formula is a linear response of the quantum transverse transport to a weak electric field. It has been intensively studied for a quantum system without decoherence, but it is barely explored for…

量子物理 · 物理学 2014-10-14 H. Z. Shen , W. Wang , X. X. Yi

Kubo formula gives a linear response of a quantum system to external fields, which are classical and weak with respect to the energy of the system. In this work, we take the quantum nature of the external field into account, and define a…

介观与纳米尺度物理 · 物理学 2016-11-28 Z. C. Shi , H. Z. Shen , X. X. Yi

We investigate spin transport in 2-dimensional insulators, with the long-term goal of establishing whether any of the transport coefficients corresponds to the Fu-Kane-Mele index which characterizes 2d time-reversal-symmetric topological…

数学物理 · 物理学 2019-09-09 Giovanna Marcelli , Gianluca Panati , Clément Tauber

Following our previous work [S. Murakami, N. Nagaosa, S. C. Zhang, Science 301, 1348 (2003)] on the dissipationless quantum spin current, we present an exact quantum mechanical calculation of this novel effect based on the linear response…

介观与纳米尺度物理 · 物理学 2007-05-23 Shuichi Murakami , Naoto Nagaosa , Shou-Cheng Zhang

The non-commutative theory of charge transport in mesoscopic aperiodic systems under magnetic fields, developed by Bellissard, Shulz-Baldes and collaborators in the 90's, is complemented with a practical numerical implementation. The…

统计力学 · 物理学 2012-10-25 Yu Xue , Emil Prodan

The Kubo formula is used to calculate the spin-Hall conductivity in a spin-polarized two-dimensional electron system with Rashba-type spin-orbit interaction. As in the case of the unpolarized electron system, spin Hall conductivity is…

材料科学 · 物理学 2009-11-13 C. P. Moca , D. C. Marinescu

We derive from first principles the Kubo formulas for the stress-stress response function at zero wavevector that can be used to define the full complex frequency-dependent viscosity tensor, both with and without a uniform magnetic field.…

统计力学 · 物理学 2013-05-30 Barry Bradlyn , Moshe Goldstein , N. Read

Starting from the Kubo formula, we expand the Hall conductivity using a cumulant approach which converges quickly at high temperatures (k_BT > energy differences of initial and final scattering states) and can be extended to low…

其他凝聚态物理 · 物理学 2013-10-18 Louis-François Arsenault , B. Movaghar

We propose a mechanism of spin Hall effect in two-dimensional electron gas with spatially random Rashba spin-orbit interaction. The calculations based on the Kubo formalism and kinetic equation show that in contrast to the constant…

介观与纳米尺度物理 · 物理学 2015-05-20 V. K. Dugaev , M. Inglot , E. Ya. Sherman , J. Barnas

We report an order-N approach to compute the Kubo Hall conductivity for disorderd two-dimensional systems reaching tens of millions of orbitals, and realistic values of the applied external magnetic fields (as low as a few Tesla). A…

介观与纳米尺度物理 · 物理学 2015-06-23 Frank Ortmann , Nicolas Leconte , Stephan Roche

Within the framework of the scattering matrix formalism the nonlinear Kubo theory for electron transport in the metal with a tunnel barrier has been considered. A general expression for the mean electrical current was obtained. It…

统计力学 · 物理学 2018-02-07 E. E. Zubov

The average of densities of currents and charges, induced by a weak electromagnetic field in spatially inhomogeneous are calculated at final temperatures. The Kubo formula for a conductivity tensor is generalized for spatially inhomogeneous…

介观与纳米尺度物理 · 物理学 2009-11-10 S. T. Pavlov , I. G. Lang , L. I. Korovin

In this expository article, we present a systematic formal derivation of the Kubo formula for the linear-response current due to a time-harmonic electric field applied to non-interacting, spinless charged particles in a finite volume in the…

数学物理 · 物理学 2023-08-15 Alexander B. Watson , Dionisios Margetis , Mitchell Luskin

Building upon Zubarev's nonequilibrium statistical operator formalism, we derive a relativistic canonical-like second-order spin hydrodynamics for two power-counting schemes. We obtain comprehensive second-order expressions for dissipative…

核理论 · 物理学 2025-02-25 Duan She , Yi-Wei Qiu , Defu Hou
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