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We discuss a general scheme for creating atomic spin-orbit coupling (SOC) such as the Rashba or Dresselhaus types using magnetic-field-gradient pulses. In contrast to conventional schemes based on adiabatic center-of-mass motion with atomic…

量子气体 · 物理学 2013-06-27 Zhi-Fang Xu , Li You , Masahito Ueda

The energy vs. crystal momentum E(k) diagram for a solid (band structure) constitutes the road map for navigating its optical, magnetic, and transport properties. By selecting crystals with specific atom types, composition and symmetries,…

材料科学 · 物理学 2020-07-22 Lin-Ding Yuan , Zhi Wang , Jun-Wei Luo , Emmanuel I. Rashba , Alex Zunger

We describe electrical detection of spin pumping in metallic nanostructures. In the spin pumping effect, a precessing ferromagnet attached to a normal-metal acts as a pump of spin-polarized current, giving rise to a spin accumulation. The…

介观与纳米尺度物理 · 物理学 2009-11-13 M. V. Costache , S. M. Watts , C. H. van der Wal , B. J. van Wees

Using the Landauer-B\"utikker formalism, we study the graphene magneto-transport in the presence of Rashba spin-orbit interaction (RSOI). We show that the angle resolved transmission probability in the proposed structures can be tuned by…

介观与纳米尺度物理 · 物理学 2018-12-05 Razieh Beiranvand , Hossein Hamzehpour

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

We study theoretically a dimer chain in the presence of Rashba-Dresselhaus spin-orbit coupling (RDSOC) with equal strength. We show that the RDSOC can be described as a synthetic gauge field that controls not only the magnitude but also the…

介观与纳米尺度物理 · 物理学 2022-06-03 Pavel Kokhanchik , Dmitry Solnyshkov , Thilo Stöferle , Barbara Piętka , Jacek Szczytko , Guillaume Malpuech

The transport properties of a circular billiard with attached channels, which is an open system, have been studied in the presence of the Dresselhaus and Rashba spin-orbit interactions. It has been shown that this interaction leads to the…

量子物理 · 物理学 2013-02-04 Alexander Malyshev , Galina Isupova

Effective spin mixing conductance (ESMC) across the nonmagnetic metal (NM)/ferromagnet interface, spin Hall conductivity (SHC) and spin diffusion length (SDL) in the NM layer govern the functionality and performance of pure spin current…

材料科学 · 物理学 2016-09-02 L. Ma , H. A. Zhou , L. Wang , X. L. Fan , W. J. Fan , D. S. Xue , K. Xia , G. Y. Guo , S. M. Zhou

We present an analysis of the symmetries of the interference pattern of critical currents through a two-dimensional superconductor-semiconductor-superconductor junction, taking into account Rashba and Dresselhaus spin-orbit interaction, an…

介观与纳米尺度物理 · 物理学 2016-04-13 Asbjørn Rasmussen , Jeroen Danon , Henri Suominen , Fabrizio Nichele , Morten Kjaergaard , Karsten Flensberg

We study spin-dependent transport through ferromagnet/normal-metal/ferromagnet double tunnel junctions in the mesoscopic Coulomb blockade regime. A general transport equation allows us to calculate the conductance in the absence or presence…

介观与纳米尺度物理 · 物理学 2009-10-31 Gonzalo Usaj , Harold. U. Baranger

We study the spin-dependent transport through a quantum dot coupled to two ferromagnetic electrodes using the equation of motion method for the nonequilibrium Green's functions. Our results show that the conductance and the density of…

介观与纳米尺度物理 · 物理学 2007-05-23 Huanwen Lai , Xuean Zhao , Zhu-An Xu , You-Quan Li

Anisotropic magnetic exchange interactions lead to a surprisingly rich variety of the magnetic properties. Considering the spin orbit coupling (SOC) as perturbation, we extract the general expression of a bilinear spin Hamiltonian,…

材料科学 · 物理学 2023-08-29 Di Wang , Xiangyan Bo , Feng Tang , Xiangang Wan

Spin dependent transport in a multi-terminal mesoscopic ring is investigated in presence of Rashba and Dresselhaus spin-orbit interactions. Within a tight-binding framework we use a general spin density matrix formalism to evaluate all…

介观与纳米尺度物理 · 物理学 2013-10-31 Moumita Dey , Santanu K. Maiti , Sreekantha Sil , S. N. Karmakar

We study the spin and charge accumulation in junctions between a superconductor and a ferromagnet or a normal metal in the presence of a Zeeman magnetic field, when the junction is taken out of equilibrium by applying a voltage bias. We…

介观与纳米尺度物理 · 物理学 2018-01-18 D. Chevallier , M. Trif , C. Dutreix , M. Guigou , C. H. L. Quay , M. Aprili , C. Bena

We study spin and valley transports in junctions composed of silicene and topological crystalline insulators. We consider normal/magnetic/normal Dirac metal junctions where a gate electrode is attached to the magnetic region. In…

介观与纳米尺度物理 · 物理学 2015-06-19 Takehito Yokoyama

We theoretically analyzed the Andreev reflection in ferromagnetic metal/nonmagnetic metal/superconductor double junctions with special attention to the electron interference effect in the nonmagnetic metal layer. We showed that the…

介观与纳米尺度物理 · 物理学 2009-06-29 Hiroyuki Ohtori , Hiroshi Imamura

Spin transport was studied in a two-dimensional electron gas hosted in a wide GaAs quantum well occupying two subbands. Using space and time Kerr rotation microscopy to image drifting spin packets under an in-plane accelerating electric…

介观与纳米尺度物理 · 物理学 2020-07-01 N. M . Kawahala , F. C. D. Moraes , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

We investigate theoretically the spin transport in two-terminal mesoscopic rings in the presence of both the Rashba spin-orbit interaction (RSOI) and the Dresselhaus spin-orbit interaction (DSOI). We find that the interplay between the RSOI…

介观与纳米尺度物理 · 物理学 2009-11-13 M. Wang , Kai Chang

We study transport phenomena through a ballistic ferromagnet-superconductor-ferromagnet (F/S/F) junction, comparing the case in which the ferromagnetic order in the two F layers is of the standard Stoner type with the case where it is…

超导电性 · 物理学 2022-06-08 Paola Gentile , Marilena Catapano , Nicola De Vivo , Mario Cuoco , Alfonso Romano , Canio Noce

We study the frequency dependent spin- and charge- conductivity tensors of a two-dimensional electron gas (2DEG) with Rashba and Dresselhaus spin-orbit interaction. We show that the angular anisotropy of the spin-splitting energy induced by…

介观与纳米尺度物理 · 物理学 2009-11-11 Jesús A. Maytorena , Catalina López-Bastidas , Francisco Mireles