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相关论文: Nonequilibrium Rashba field driven domain wall mot…

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Current-induced magnetic domain wall motion, induced by transfer of spin transfer effect due to exchange interaction, is expected to be useful for next generation high-density storages. We here show that efficient domain wall manipulation…

介观与纳米尺度物理 · 物理学 2009-11-13 Katsunori Obata , Gen Tatara

Spin-orbit interaction (SOI) offers a nonferromagnetic scheme to realize spin polarization through utilizing an electric field. Electrically tunable SOI through electrostatic gates have been investigated, however, the relatively weak and…

We investigate theoretically the influence of the spin-orbit interaction of Rashba type on the magnetoresistance of a semiconducting ferromagnetic nanostructure with a laterally constrained domain wall. The domain wall is assumed sharp (on…

材料科学 · 物理学 2009-11-10 V. K. Dugaev , J. Barnas , J. Berakdar , V. I. Ivanov , W. Dobrowolski , V. F. Mitin

Spin-orbit interaction (SOI) has been a key tool to steer and manipulate spin-dependent transport properties in two-dimensional electron gases. Here we demonstrate how spin currents can be created and efficiently read out in nano- or…

介观与纳米尺度物理 · 物理学 2023-04-05 F. N. Gürsoy , P. Reck , C. Gorini , K. Richter , I. Adagideli

We study the nuclear spin relaxation in a ballistic nanowire with hyperfine and Rashba spin-orbit interactions (SOI) and in the presence of magnetic field and electron interactions. The relaxation rate shows pronounced peaks as function of…

介观与纳米尺度物理 · 物理学 2015-06-22 Alexander A. Zyuzin , Tobias Meng , Viktoriia Kornich , Daniel Loss

The spin dynamics in a quantum wire with a Rashba spin orbit interaction (SOI) is shown to be controllable via sub-picosecond electromagnetic pulses shaped appropriately. If the light polarization vector is along the wire's direction, the…

介观与纳米尺度物理 · 物理学 2015-05-20 Zhen-Gang Zhu , Cheng-Long Jia , Jamal Berakdar

In our numerical study, we identify the best conditions for efficient domain wall motion by spin-orbit torques originating from the Spin Hall effect or Rashba effect. We demonstrate that the effect depends critically on the domain wall…

材料科学 · 物理学 2013-01-31 A. V. Khvalkovskiy , V. Cros , D. Apalkov , V. Nikitin , M. Krounbi , K. A. Zvezdin , A. Anane , J. Grollier , A. Fert

We investigate the non-equilibrium charge and spin-dependent currents in a quantum ring with a Rashba spin orbit interaction (SOI) driven by two asymmetric picosecond electromagnetic pulses. The equilibrium persistent charge and persistent…

介观与纳米尺度物理 · 物理学 2009-12-01 Zhen-Gang Zhu , Jamal Berakdar

The precise manipulation of transverse magnetic domain walls in finite/infinite nanowires with artificial defects under the influence of very short spin-polarized current pulses is investigated. We show that for a classical $3d$ ferromagnet…

介观与纳米尺度物理 · 物理学 2018-01-09 A. Pivano , V. O. Dolocan

By modeling a Rashba nanowire contacted to leads via an inhomogeneous spin-orbit coupling profile, we investigate the equilibrium properties of the spin sector when a uniform magnetic field is applied along the nanowire axis. We find that…

介观与纳米尺度物理 · 物理学 2018-08-02 Fabrizio Dolcini , Fausto Rossi

Indium arsenide (InAs) nanowires (NWs) are a promising platform to fabricate quantum electronic devices, among others they have strong spin-orbit interaction (SOI). The controlled tuning of the SOI is desired in spin based quantum devices.…

介观与纳米尺度物理 · 物理学 2016-08-03 Zoltán Scherübl , Gergő Fülöp , Morten Hannibal Madsen , Jesper Nygård , Szabolcs Csonka

Spin-orbit torque in magnetic domain walls was investigated by solving the Pauli-Schr\"{o}dinger equation for the itinerant electrons. The Rashba interaction considered is derived from the violation of inversion symmetry at interfaces…

介观与纳米尺度物理 · 物理学 2019-08-21 D. Wang , Yan Zhou

We investigate the domain wall dynamics of a ferromagnetic wire under the combined influence of a spin-polarized current and magnonic spin-transfer torque generated by an external field, taking also into account Rashba spin-orbit coupling…

介观与纳米尺度物理 · 物理学 2015-06-11 Jacob Linder

We theoretically study the current-induced dynamics of a transverse magnetic domain wall in bi-layer nanowires consisting of a ferromagnet on top of a nonmagnet having strong spin-orbit coupling. Domain wall dynamics is characterized by two…

介观与纳米尺度物理 · 物理学 2012-07-18 Soo-Man Seo , Kyoung-Whan Kim , Jisu Ryu , Hyun-Woo Lee , Kyung-Jin Lee

We study ballistic transport of spin-polarized electrons through quantum wires in which the strength of the Rashba spin-orbit interaction (SOI) is spatially modulated. Subband mixing, due to SOI, between the two lowest subbands is taken…

介观与纳米尺度物理 · 物理学 2009-11-10 X. F. Wang

We derive the effective dimensionally reduced Schr\"odinger equation with spin-orbit interaction in low-dimensional electronic strain driven nanostructures. A method of adiabatic separation among fast normal quantum degrees of freedom and…

介观与纳米尺度物理 · 物理学 2013-08-29 Paola Gentile , Mario Cuoco , Carmine Ortix

In a one-dimensional weak-link wire the spin-orbit interaction (SOI) alone cannot generate a nonzero spin current. We show that a Zeeman field acting in the wire in conjunction with the Rashba SOI there does yield such a current, whose…

介观与纳米尺度物理 · 物理学 2018-06-20 A. Aharony , O. Entin-Wohlman , M. Jonson , R. I. Shekhter

We study the spatial distribution of spin torque induced by a strong Rashba spin-orbit coupling (RSOC) in a ferromagnetic (FM) metal layer, using the Keldysh non-equilibrium Green's function method. In the presence of the s-d interaction…

介观与纳米尺度物理 · 物理学 2012-02-27 N. L. Chung , M. B. A. Jalil , S. G. Tan

Using the Lagrangian formalism, we solve analytically the equations of motion for current-induced domain-wall dynamics in a ferromagnet with Rashba spin-orbit coupling. An exact solution for the domain wall velocity is provided, including…

介观与纳米尺度物理 · 物理学 2015-06-15 Jacob Linder

We study the spin transport theoretically in heterostructures consisting of a ferromagnetic metallic thin film sandwiched between heavy-metal and oxide layers. The spin current in the heavy metal layer is generated via the spin Hall effect,…

介观与纳米尺度物理 · 物理学 2019-01-30 L. Chotorlishvili , Z. Toklikishvili , X. -G. Wang , V. K. Dugaev , J. Barnas , J. Berakdar
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