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We have developed a theory of the anomalous Hall effect in two-dimensional electron gas in the case where the time of electron-electron collisions is much smaller than the transport relaxation time. The transition between the diffusion…

介观与纳米尺度物理 · 物理学 2023-10-30 D. S. Zohrabyan , M. M. Glazov

While the anomalous Hall effect can manifest even without an external magnetic field, time reversal symmetry is nonetheless still broken by the internal magnetization of the sample. Recently, it has been shown that certain materials without…

The spin Hall effect is a phenomenon that an electric field induces a spin Hall current. In this Letter, we examine the inverse effect that, in a ferromagnetic conductor, a charge Hall current is induced by a spin motive force, or a…

介观与纳米尺度物理 · 物理学 2009-11-13 Junya Shibata , Hiroshi Kohno

Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular momentum and orbital angular momentum in various cases, e.g.,…

光学 · 物理学 2024-03-05 Wei E. I. Sha , Zhihao Lan , Menglin L. N. Chen , Yongpin P. Chen , Sheng Sun

We examine a possible spin Hall effect for localized spin systems with no charge degrees of freedom. In this scenario, a longitudinal magnetic field gradient induces a transverse spin current carried by spin wave excitations with an…

强关联电子 · 物理学 2009-07-03 Satoshi Fujimoto

The effect of spin-orbit interaction on electron transport properties of a cross-junction structure is studied. It is shown that it results in spin polarization of left and right outgoing electron waves. Consequently, incoming electron wave…

介观与纳米尺度物理 · 物理学 2009-10-31 E. N. Bulgakov , K. N. Pichugin , A. F. Sadreev , P. Středa , P. Šeba

It has been expected that astronomical observations to detect the orbital angular momenta of electromagnetic waves may give us a new insight into astrophysics. Previous works pointed out the possibility that a rotating black hole can…

广义相对论与量子宇宙学 · 物理学 2016-07-01 Ryusuke Nishikawa , Ken-ichi Nakao , Atsuki Masuda , Yasusada Nambu , Hideki Ishihara

We consider reflection and transmission of polarized paraxial light beams at a plane dielectric interface. The field transformations taking into account a finite beam width are described based on the plane-wave representation and geometric…

光学 · 物理学 2013-01-18 Konstantin Y. Bliokh , Andrea Aiello

Based on a rigorous quantum-kinetic approach, spin-charge coupled drift-diffusion equations are derived for a strongly confined two-dimensional hole gas. An electric field leads to a coupling between the spin and charge degrees of freedom.…

统计力学 · 物理学 2009-11-13 P. Kleinert , V. V. Bryksin

We present experiments on Orbital Angular Momentum (OAM) induced beam shifts in optical reflection. Specifically, we observe the spatial Goos-H\"anchen shift in which the beam is displaced parallel to the plane of incidence and the angular…

光学 · 物理学 2011-09-29 N. Hermosa , M. Merano , A. Aiello , J. P. Woerdman

Using the construction of the Fermi frame, the field of a gravitational wave can be described in terms of gravito-electromagnetic fields that are transverse to the propagation direction and orthogonal to each other. In particular, the…

广义相对论与量子宇宙学 · 物理学 2020-11-13 Matteo Luca Ruggiero , Antonello Ortolan

We provide a theoretical framework for the electric field control of the electron spin in systems with diffusive electron motion. The approach is valid in the experimentally important case where both intrinsic and extrinsic spin-orbit…

介观与纳米尺度物理 · 物理学 2009-09-10 R. Raimondi , P. Schwab

Waveguiding in general and acoustic waveguiding in particular are possible at the condition of having a transverse "discontinuity" or modulation of the refractive index. We propose here a radically different approach that relies on imposing…

经典物理 · 物理学 2022-10-18 Mohamed Farhat , Pai-Yen Chen , Ying Wu

Gravity simulators are laboratory systems where small excitations like sound or surface waves behave as fields propagating on a curved spacetime geometry. The analogy between gravity and fluids requires vanishing viscosity, a feature…

We propose the gravitational analog of the chiroptical effect for the first time, demonstrating that gravitational waves (GWs) can induce a reversal of photon chirality through the exchange of angular momentum, namely the spin-2-gravitation…

广义相对论与量子宇宙学 · 物理学 2026-01-13 Haorong Wu , Xilong Fan

A theory of the anomalous and spin Hall effects, based on the space distribution of the current densities, is presented. Spin-orbit coupling gives rise to a space separation of the mass centers, as well as a current density separation of…

介观与纳米尺度物理 · 物理学 2010-09-09 Pavel Středa , Thibaut Jonckheere

The anomalous Hall effect has been indispensable in our understanding of numerous magnetic phenomena. This concerns both ferromagnetic materials, as well as diverse classes of antiferromagnets, where in addition to the anomalous and crystal…

介观与纳米尺度物理 · 物理学 2021-09-08 J. Kipp , K. Samanta , F. R. Lux , M. Merte , J. -P. Hanke , M. Redies , F. Freimuth , S. Blügel , M. Ležaić , Y. Mokrousov

For twisted particles in arbitrary gravitational fields, the problems of the rotation of intrinsic orbital angular momentum and the orbital Hall effect are solved in the general case. We need not use the Maxwell equations in curved…

广义相对论与量子宇宙学 · 物理学 2025-10-07 Alexander J. Silenko

Spin Hall effect, one of the cornerstones in spintronics refers to the emergence of an imbalance in the spin density transverse to a charge flow in a sample under voltage bias. This study points to a novel way for an ultrafast generation…

介观与纳米尺度物理 · 物理学 2018-11-26 Jonas Wätzel , Jamal Berakdar

We report on the observation of the acoustic spin Hall effect that facilitates lattice motion induced spin current via spin orbit interaction (SOI). Under excitation of surface acoustic wave (SAW), we find a spin current flows orthogonal to…

介观与纳米尺度物理 · 物理学 2021-02-02 Takuya Kawada , Masashi Kawaguchi , Takumi Funato , Hiroshi Kohno , Masamitsu Hayashi