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相关论文: Hanle effect driven by weak-localization

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We use the perturbative method to study the influence of the magnetic field on the weak deflection angle of charged signals in magnetized stationary and axisymmetric spacetimes within general electromagnetic potentials. The deflection angle…

广义相对论与量子宇宙学 · 物理学 2025-01-08 Qianchuan Wang , Junji Jia

We derive the eigenenergies and eigenstates of electrons in a quantum wire subjected to an external magnetic field. These are calculated in the presence of spin orbit interactions arising from the Rashba (structural inversion asymmetry) and…

介观与纳米尺度物理 · 物理学 2009-11-10 S. Bandyopadhyay , S. Pramanik , M. Cahay

The magnetic proximity effect can induce a spin dependent exchange shift in the band structure of graphene. This produces a magnetization and a spin polarization of the electron/hole carriers in this material, paving the way for its use as…

介观与纳米尺度物理 · 物理学 2023-12-13 Boxuan Yang , Bibek Bhujel , Daniel G. Chica , Evan J. Telford , Xavier Roy , Maxen Cosset-Chéneau , Bart J. van Wees

We consider stationary spin current in a (110)-oriented GaAs-based symmetric quantum well due to a nonlinear response to an external periodic electric field. The model assumed includes the Dresselhaus spin-orbit interaction and the random…

材料科学 · 物理学 2015-05-30 V. I. Ivanov , V. K. Dugaev , E. Ya. Sherman , J. Barnas

We compute analytically the weak (anti)localization correction to the Drude conductivity for electrons in tubular semiconductor systems of zinc blende type. We include linear Rashba and Dresselhaus spin-orbit coupling (SOC) and compare…

介观与纳米尺度物理 · 物理学 2016-12-09 Michael Kammermeier , Paul Wenk , John Schliemann , Sebastian Heedt , Thomas Schäpers

A system of two quantum wells (QW), one made of HgCdTe and the other of HgCdMnTe, subjected to electric and magnetic fields $F$ and $B$ parallel to the growth direction, is proposed and described theoretically. It is shown that in such a…

材料科学 · 物理学 2012-06-21 Pawel Pfeffer , Wlodek Zawadzki

We show that a two-dimensional spin-orbit-coupled system in the presence of a charge/spin-density wave with a wave-vector perpendicular to an applied electric field supports bulk manifestations of the direct/inverse spin-Hall effect. We…

材料科学 · 物理学 2010-03-15 Brandon Anderson , Tudor D. Stanescu , Victor Galitski

Larmor's theorem holds for magnetic systems that are invariant under spin rotation. In the presence of spin-orbit coupling this invariance is lost and Larmor's theorem is broken: for systems of interacting electrons, this gives rise to a…

介观与纳米尺度物理 · 物理学 2017-07-12 Shahrzad Karimi , Florent Baboux , Florent Perez , Carsten A. Ullrich , Grzegorz Karczewski , Tomasz Wojtowicz

Strong spin-orbit coupling in topological insulators results in the ubiquitously observed weak antilocalization feature in their magnetoresistance. Here we present magnetoresistance measurements in ultra thin films of the topological…

介观与纳米尺度物理 · 物理学 2014-03-04 Li Zhang , Merav Dolev , Qi I. Yang , Robert H. Hammond , Bo Zhou , Alexander Palevski , Yulin Chen , Aharon Kapitulnik

We have studied the phenomenon of weak localization in multi-quantum-well (MQW) structures in the regime of weak tunneling, when superlattice minibands are not formed. We have calculated the effect of weak localization on conductivity,…

凝聚态物理 · 物理学 2007-05-23 F. G. Pikus , G. E. Pikus

We show that the influence of spin-orbit (SO) coupling on the weak localization effect for electrons in graphene depends on the lack or presence of z/-z symmetry in the system. While for z/-z asymmetric SO coupling, disordered graphene…

介观与纳米尺度物理 · 物理学 2015-06-03 Edward McCann , Vladimir I. Fal'ko

We present a theoretical study of spin transport in a superconducting mesoscopic spin valve under the action of a magnetic field misaligned with respect to the injected spin. We demonstrate that superconductivity can either strongly enhance…

超导电性 · 物理学 2015-02-09 M. Silaev , P. Virtanen , T. T. Heikkilä , F. S. Bergeret

The quantum spin Hall effect has been predicted theoretically and observed experimentally in InAs/GaSb quantum wells as a result of inverted band structures, for which electron bands in InAs layers are below heavy hole bands in GaSb layers…

介观与纳米尺度物理 · 物理学 2016-08-03 Lun-Hui Hu , Chao-Xing Liu , Dong-Hui Xu , Fu-Chun Zhang , Yi Zhou

We theoretically investigate the effects of the weak magnetization on the local density of states of mesoscopic proximity structures, where two superconducting terminals are attached to a side surface of the diffusive ferromagnet wire with…

超导电性 · 物理学 2023-10-05 Shu-Ichiro Suzuki , Alexander A. Golubov , Yasuhiro Asano , Yukio Tanaka

We present some theoretical predictions concerning the amplitude and magnetic sensitivity of the linear polarization signals produced by scattering processes in the hydrogen Ly-alpha line of the solar transition region. To this end, we have…

太阳与恒星天体物理 · 物理学 2015-05-28 Javier Trujillo Bueno , Jiri Stepan , Roberto Casini

We analyze the Landau level (LL) structure and spin Hall effect in a MoS2 trilayer. Due to orbital asymmetry, the low-energy Dirac fermions become heavily massive and the LL energies grow linearly with $B$, rather than with $\sqrt{B}$.…

介观与纳米尺度物理 · 物理学 2013-02-06 Xiao Li , Fan Zhang , Qian Niu

There currently is a large effort to explore spin-orbit effects in semiconductor structures with the ultimate goal of manipulating electron spins with gates. A search for materials with large spin-orbit coupling is therefore important. We…

介观与纳米尺度物理 · 物理学 2009-11-10 S. A. Studenikin , P. T. Coleridge , P. Poole , A. Sachrajda

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

介观与纳米尺度物理 · 物理学 2007-05-23 S. Chesi , G. F. Giuliani

Measurements of interplanetary magnetic fields have long relied on spacecraft measurements, which provide only in-situ sampling and therefore cannot capture the global magnetic structure. Faraday rotation of radio signals extends in-situ…

空间物理 · 物理学 2026-05-28 Chuanpeng Hou , Huirong Yan , Siqi Zhao

The bulk of the quiet solar photosphere is thought to be significantly magnetized, due to the ubiquitous presence of a tangled magnetic field at subresolution scales with an average strength <B> ~ 100 G. This conclusion was reached through…

太阳与恒星天体物理 · 物理学 2015-05-27 Nataliya Shchukina , Javier Trujillo Bueno