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Understanding the effects of spin-orbit coupling (SOC) and many-body interactions on spin transport is important in condensed matter physics and spintronics. This topic has been intensively studied for spin carriers such as electrons but…

We investigate collective phenomena with rotationally driven spinners of concave shape. Each spinner experiences a constant internal torque in either a clockwise or counterclockwise direction. Although the spinners are modeled as hard,…

软凝聚态物质 · 物理学 2014-03-10 Nguyen H. P. Nguyen , Daphne Klotsa , Michael Engel , Sharon C. Glotzer

Scattering of electrons by localized spins is the ultimate process enabling electrical detection and control of the magnetic state of a spin-doped material. At the molecular scale, this scattering is mediated by the electronic orbitals…

The recent experimental realization of spin-orbit (SO) coupling for spin-1 ultracold atoms opens an interesting avenue for exploring SO-coupling-related physics in large-spin systems, which is generally unattainable in electronic materials.…

量子气体 · 物理学 2016-02-11 Kuei Sun , Chunlei Qu , Yong Xu , Yongping Zhang , Chuanwei Zhang

We study the spin polarization of mixed and entangled electron states in a four probe/beam splitter geometry with local Rashba and Dresselhaus interactions. A pair of maximally entangled electrons collides with the beam splitter and enters…

量子物理 · 物理学 2012-12-04 Luis A. González-Árraga , Bertrand Berche , Ernesto Medina

The equations of motion of pair-like excitations in the superconducting state are studied for various types of pairing using the random phase approximation. The collective modes are computed of a layered electron gas described by a $t-t'$…

凝聚态物理 · 物理学 2009-10-22 D. van der Marel

Anderson localization is a single particle localization phenomena in disordered media that is accompanied by an absence of diffusion. Spin-orbit coupling (SOC) describes an interaction between a particle's spin and its momentum that…

量子气体 · 物理学 2020-09-23 Y. Yue , C. A. R. Sá de Melo , I. B. Spielman

NbP is one member of a new class of nodal loop semimetals characterized by the cooperative effects of spin-orbit coupling (SOC) and a lack of inversion center. Here transport and spectroscopic properties of NbP are evaluated using density…

材料科学 · 物理学 2016-09-26 Kyo-Hoon Ahn , K. -W. Lee , W. E. Pickett

Magnetic field usually leads to a polarization of electron spins. It is shown that in a system of {\em strongly interacting} particles applying magnetic field may lead to an opposite effect -- depolarization of electron spins. Results of…

介观与纳米尺度物理 · 物理学 2009-11-07 S. A. Mikhailov , N. A. Savostianova

Intrinsic electron spin relaxation due to the D'yakonov-Perel' mechanism is studied in monolayer Molybdenum Disulphide. An intervalley in-plane spin relaxation channel is revealed due to the opposite effective magnetic fields perpendicular…

介观与纳米尺度物理 · 物理学 2014-03-28 L. Wang , M. W. Wu

In frame of Dirac quantum field theory that describes electrons and positrons as elementary excitations of the spinor field, the generalized operator of the spin-orbit interaction is obtained using non-relativistic approximation in the…

介观与纳米尺度物理 · 物理学 2020-04-01 A. A. Eremko , L. Brizhik , V. M. Loktev

Nuclear spin coherence and relaxation dynamics of all constituent isotopes of an n-doped CdTe/(Cd,Mg)Te quantum well structure are studied employing optically detected nuclear magnetic resonance. Using time-resolved pump-probe Faraday…

介观与纳米尺度物理 · 物理学 2019-04-04 E. Evers , T. Kazimierczuk , F. Mertens , D. R. Yakovlev , G. Karczewski , T. Wojtowicz , J. Kossut , M. Bayer , A. Greilich

We study theoretically the current-induced spin polarization effect in a two-terminal mesoscopic structure which is composed of a semiconductor two-dimensional electron gas (2DEG) bar with Rashba spin-orbit (SO) interaction and two attached…

介观与纳米尺度物理 · 物理学 2015-06-25 Yongjin Jiang

We study the collective magnetic excitations of the recently discovered $C_{4}$ symmetric spin-density wave states of iron-based superconductors with particular emphasis on their orbital character based on an itinerant multiorbital…

超导电性 · 物理学 2016-11-22 Daniel D. Scherer , Ilya Eremin , Brian M. Andersen

Using a combined analytical and numerical approach, we study the collective spin and orbital excitations in a spin-orbital chain under a crystal field. Irrespective of the crystal field strength, these excitations can be universally…

强关联电子 · 物理学 2015-04-03 Cheng-Chien Chen , Michel van Veenendaal , Thomas P. Devereaux , Krzysztof Wohlfeld

Recent claims of an experimental demonstration of spontaneous spin polarisation in dilute electron gases \cite{young99} revived long standing theoretical discussions \cite{ceper99,bloch}. In two dimensions, the stabilisation of a…

材料科学 · 物理学 2009-11-11 P. Giudici , A. R. Goñi , P. G. Bolcatto , C. R. Proetto , K. Eberl , M. Hauser , C. Thomsen

Supposing the spin-triplet superconducting state of Sr$_2$RuO$_4$, the spin-orbit (SO) coupling associated with relative motion in Cooper pairs is calculated by extending the method for the dipole-dipole coupling given by Leggett in the…

超导电性 · 物理学 2015-05-18 K. Miyake

In spin-polarized itinerant electron systems, collective spin-wave modes arise from dynamical exchange and correlation (xc) effects. We here consider spin waves in doped paramagnetic graphene with adjustable Zeeman-type band splitting. The…

介观与纳米尺度物理 · 物理学 2022-01-05 Matthew J. Anderson , Florent Perez , Carsten A. Ullrich

Spin-orbit coupling (SOC) describes the relativistic interaction between the spin and momentum degrees of freedom of electrons, and is central to the rich phenomena observed in condensed matter systems. In recent years, new phases of matter…

介观与纳米尺度物理 · 物理学 2016-11-30 Anjan Soumyanarayanan , Nicolas Reyren , Albert Fert , Christos Panagopoulos

A theoretical study of spin dynamics in non-relativistic particle beams with interacting angular momenta traversing static, spatially varying magnetic fields is presented. The computational framework evaluates sinusoidal magnetic field…