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The strength of the non-adiabatic spin torque is currently under strong debate, as its value differs by orders of magnitude as well in theoretical predictions as in measurements. Here, a measurement scheme is presented that allows to…

Using strong-coupling time-dependent perturbation theory, we study the response of Mott and charge-transfer insulators to an oscillating electric field. We derive analytical expressions for the resulting higher-harmonic currents and show…

Using mapping between topological defects in an easy-plane magnet and electrical charges, we study interplay between vorticity and spin currents. We demonstrate that the flow of vorticity is accompanied by the transverse spin current…

介观与纳米尺度物理 · 物理学 2022-12-16 Edward Schwartz , Hamed Vakili , Moaz Ali , Alexey A. Kovalev

Strongly correlated fractional quantum Hall liquids support fractional excitations, which can be understood in terms of adiabatic flux insertion arguments. A second route to fractionalization is through the coupling of weakly interacting…

强关联电子 · 物理学 2013-09-04 Armin Rahmani , Rodrigo A. Muniz , Ivar Martin

Intrinsic and extrinsic spin Hall effects are considered together on an equal theoretical footing for the Rashba spin-orbit coupling in two-dimensional (2D) electron and hole systems, using the diagrammatic method for calculating the spin…

介观与纳米尺度物理 · 物理学 2009-11-11 Wang-Kong Tse , S. Das Sarma

Electric Hall effects generated by an in-plane magnetic field have recently gained attention owing to their intrinsic origin in topological electronic states and potential application in magnetic field sensing. In pratice, the measured…

介观与纳米尺度物理 · 物理学 2026-04-23 Soumya Sankar , Xingkai Cheng , Junwei Liu , Berthold Jäck

Current-voltage characteristics of a spintromechanical device, in which spin-polarized electrons tunnel between magnetic leads with anti-parallel magnetization through a single level movable quantum dot, are calculated. New exchange- and…

介观与纳米尺度物理 · 物理学 2020-05-20 Olya A. Ilinskaya , Danko Radic , Hee Chul Park , Ilya V. Krive , Robert I. Shekhter , Mats Jonson

The Hall effects comprise one of the oldest but most vital fields in condensed matter physics, and they persistently inspire new findings, such as quantum Hall effects and topological phases of matter. The recently discovered nonlinear Hall…

介观与纳米尺度物理 · 物理学 2021-09-09 Z. Z. Du , Hai-Zhou Lu , X. C. Xie

We measure electrically detected ferromagnetic resonance in microdevices patterned from ultra-thin Co/Pt bilayers. Spin pumping and rectification voltages are observed and distinguished via their angular dependence. The spin-pumping voltage…

介观与纳米尺度物理 · 物理学 2013-04-22 T. D. Skinner , H. Kurebayashi , D. Fang , D. Heiss , A. C. Irvine , A. T. Hindmarch , M. Wang , A. W. Rushforth , A. J. Ferguson

We study theoretically the zero temperature intrinsic anomalous Hall effect in an experimentally realized 2D spin-orbit coupled Bose gas. For anisotropic atomic interactions and as the spin-orbit coupling strength increases, the system…

量子气体 · 物理学 2024-02-13 Canhao Chen , Guan-Hua Huang , Zhigang Wu

We make a number of precise experimental predictions for observing the various magnetic phases and the quantum phase transitions between them in the $\nu$=2 bilayer quantum Ha ll system. In particular, we analyze the effect of an external…

介观与纳米尺度物理 · 物理学 2009-10-31 L. Brey , E. Demler , S. Das Sarma

We demonstrate the generation and detection of spin-torque ferromagnetic resonance in Pt/YIG bilayers. A unique attribute of this system is that the spin Hall effect lies at the heart of both the generation and detection processes and no…

Using the recently proposed definition of a conserved spin-current operator [J. Shi et al., Phys. Rev. Lett. 96, 076604 (2006)] we explore the frequency dependent spin Hall conductivity for a two-dimensional electron gas with Rashba and…

介观与纳米尺度物理 · 物理学 2009-11-13 Arturo Wong , Jesus A. Maytorena , Catalina Lopez-Bastidas , Francisco Mireles

A general expression of the current induced spin torque in a magnetic layered structure in the presence of external dc or ac voltages is derived in the framework of the scattering matrix approach. A detailed analysis is performed for a…

介观与纳米尺度物理 · 物理学 2010-10-05 F. Romeo , R. Citro

We study the spin-Hall effect in systems with weak cubic Rashba spin-orbit interaction. To this end we derive particle and spin diffusion equations and explicit expressions for the spin-current tensor in the diffusive regime. We discuss the…

无序系统与神经网络 · 物理学 2009-11-11 O. Bleibaum , S. Wachsmuth

Direct and inverse spin Hall effects lie at the heart of novel applications that utilize spins of electrons as information carriers, allowing generation of spin currents and detecting them via the electric voltage. In the standard…

材料科学 · 物理学 2023-01-03 Arunesh Roy , Marcos H. D. Guimarães , Jagoda Sławińska

The spin Hall effect creates a spin current in response to a charge current in a material that has strong spin-orbit coupling. The size of the spin Hall effect in many materials is disputed, requiring independent measurements of the effect.…

介观与纳米尺度物理 · 物理学 2016-05-10 Joseph A. Boales , Carl T. Boone , Pritiraj Mohanty

We show that an electric field applied to a strained topological Dirac semimetal, such as Na3Bi and Cd3As2, induces a spin Hall current that is quadratic in the electric field. By regarding the strain as an effective "axial magnetic field"…

介观与纳米尺度物理 · 物理学 2019-05-13 Yasufumi Araki

Motivated by a recent experiment[Nature {\bf 442}, 176 (2006)], we present a quantitative microscopic theory to investigate the inverse spin-Hall effect with spin injection into aluminum considering both intrinsic and extrinsic spin-orbit…

材料科学 · 物理学 2009-11-11 S. Y. Liu , Norman J. M. Horing , X. L. Lei

We develop a hydrodynamic theory for an electron system exhibiting the anomalous Hall effect, and show that an additional anomalous Hall effect is induced by a vorticity generated near boundaries. We calculate the momentum flux and force…

介观与纳米尺度物理 · 物理学 2021-07-28 Hiroshi Funaki , Riki Toshio , Gen Tatara