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In a two-dimensional ferromagnetic metal layer lacking inversion symmetry, the itinerant electrons mediate the interaction between the Rashba spin-orbit interaction and the ferromagnetic order parameter, leading to a Rashba spin torque…

材料科学 · 物理学 2011-11-24 Xuhui Wang , Aurelien Manchon

Electron transport through a one-dimensional ring connected with two external leads, in the presence of spin-orbit interaction (SOI) of strength \alpha and a perpendicular magnetic field is studied. Applying Griffith's boundary conditions…

介观与纳米尺度物理 · 物理学 2009-11-10 B. Molnar , F. M. Peeters , P. Vasilopoulos

We study spin mixing dynamics in a chromium dipolar Bose-Einstein Condensate, after tilting the atomic spins by an angle $\theta$ with respect to the magnetic field. Spin mixing is triggered by dipolar coupling, but, once dynamics has…

量子气体 · 物理学 2018-02-14 S. Lepoutre , K. Kechadi , B. Naylor , B. Zhu , L. Gabardos , L. Isaev , P. Pedri , A. M. Rey , L. Vernac , B. Laburthe-Tolra

Motivated by recent experiments on all-optical magnetization reversal in conductive ferromagnetic thin films we use nonequilibrium formalism to calculate the effective magnetic field induced in a Rashba ferromagnet by a short laser pulse.…

介观与纳米尺度物理 · 物理学 2016-07-25 Alireza Qaiumzadeh , Mikhail Titov

CoSi single crystal is a known realization of a chiral topological semimetal with simultaneously broken mirror and inversion symmetries. In addition to the symmetry-induced spin-orbit coupling, surface ferromagnetism is known in nominally…

介观与纳米尺度物理 · 物理学 2022-12-16 V. D. Esin , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

We investigate two schemes for pumping spin adiabatically from a ferromagnet through an interacting quantum dot into a normal lead, which exploit the possibility to vary in time the ferromagnet's magnetization, either its amplitude or its…

介观与纳米尺度物理 · 物理学 2013-05-17 Nina Winkler , Michele Governale , Jürgen König

A composite multiferroic chain with an interfacial linear magneto-electric coupling is used to study the magnetic and electric responses to an external magnetic or electric field. The simulation uses continuous spin dynamics through the…

介观与纳米尺度物理 · 物理学 2015-08-25 Zidong Wang , Malcolm J. Grimson

Motivated by a need to understand spin-momentum transport in CPP (current perpendicular to the plane) structures, a quantum field theoretical treatment of spin-spin interactions in ferromagnets is presented. The sd interaction of the…

材料科学 · 物理学 2007-05-23 W. N. G. Hitchon , G. J. Parker , A. Rebei

Two complementary effects modify the GHz magnetization dynamics of nanoscale heterostructures of ferromagnetic and normal materials relative to those of the isolated magnetic constituents: On the one hand, a time-dependent ferromagnetic…

介观与纳米尺度物理 · 物理学 2009-11-10 Yaroslav Tserkovnyak , Arne Brataas , Gerrit E. W. Bauer , Bertrand I. Halperin

Efficient manipulation of magnetic order with electric current pulses is desirable for achieving fast spintronic devices. The Rashba-Edelstein effect, wherein a spin polarization is electrically induced in noncentrosymmetric systems,…

材料科学 · 物理学 2024-07-01 Leandro Salemi , Marco Berritta , Ashis K. Nandy , Peter M. Oppeneer

Single femtosecond pulse toggle switching of ferrimagnetic alloys is an essential building block for ultrafast spintronics. Very different element-specific demagnetization dynamics is believed to be a hard limit for switching in…

材料科学 · 物理学 2022-05-11 F. Jakobs , U. Atxitia

We theoretically investigate the magnetization inside a normal metal containing the Rashba spin-orbit interaction (RSOI) induced by the proximity effect in an s-wave superconductor/normal metal/ferromagnetic metal/s-wave superconductor…

超导电性 · 物理学 2018-06-26 Shin-ichi Hikino

Light-matter interaction allows to achieve non-equilibrium states that are otherwise inaccessible. Motivated by recent experiments that report ferroelectricity -- and even multiferroicity -- in the prototypical diamagnetic band insulator…

材料科学 · 物理学 2026-02-25 Andri Darmawan , Markus E. Gruner , Rossitza Pentcheva

We present a theoretical study of spin-dependent transport through a ferromagnetic domain wall. With an increase of the number of components of the exchange coupling, we have observed that the variance of the conductance becomes half. As…

介观与纳米尺度物理 · 物理学 2015-06-24 J. Ohe , M. Yamamoto , T. Ohtsuki , K. Slevin

Deterministic magnetization switching using spin-orbit torque (SOT) has recently emerged as an efficient means to electrically control the magnetic state of ultrathin magnets. The SOT switching still lacks in oscillatory switching…

The investigation of a sizable thermal enhancement of magnetization is put forward for uniaxial ferromagnetic nanoparticles that are placed in a rotating magnetic field. We elucidate the nature of this phenomenon and evaluate the resonant…

统计力学 · 物理学 2016-08-16 S. I. Denisov , T. V. Lyutyy , P. Hänggi

We explore spin and charge transport phenomena in two dimensional electron gas in presence of Rashba spin-orbit coupling connected to two ideal Ferromagnetic leads. In particular we show through a combination of analytical and numerical…

介观与纳米尺度物理 · 物理学 2007-05-23 T. P. Pareek

We describe the simultaneous effects of the spin-orbit (SO) perturbation and a magnetic field $B$ on a disk shaped quantum dot (QD). {As it is known the} combination of electrostatic forces among the $N$ electrons confined in the QD and the…

介观与纳米尺度物理 · 物理学 2009-11-11 S. Bellucci , P. Onorato

We demonstrate a scalable new ferromagnetic resonance (FMR) technique based on the spin-orbit interaction. An alternating current drives FMR in uniform ferromagnetic structures patterned from the dilute magnetic semiconductors (Ga,Mn)As and…

介观与纳米尺度物理 · 物理学 2015-05-20 D. Fang , H. Kurebayashi , J. Wunderlich , K. Vyborny , L. P. Zarbo , R. P. Campion , A. Casiraghi , B. L. Gallagher , T. Jungwirth , A. J. Ferguson

The feasibility of a single-domain ferromagnet based on uniaxial magnetic ions was examined. For a noncentrosymmetric uniaxial magnetic ion of magnetic moment at a site of local electric dipole moment p, it is unknown to date whether the…

强关联电子 · 物理学 2017-05-01 Hyun-Joo Koo , Elijah E. Gordon , Myung-Hwan Whangbo