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相关论文: Tunable magnetoresistance in spin-orbit coupled gr…

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We investigate the effects of the sign of the Rashba spin-orbit coupling (RSOC) on electron transmission through a single-channel Nanowire (NW) in the quantum coherent regime. We show that, while for a finite length NW with homogeneous RSOC…

介观与纳米尺度物理 · 物理学 2022-09-26 Leonid Gogin , Fausto Rossi , Fabrizio Dolcini

Graphene is a material with great potential in the field of spintronics, combining good conductivity with low spin--orbit coupling (SOC), which allows for the transport of spin currents over long distances. However, this lack of SOC also…

介观与纳米尺度物理 · 物理学 2025-08-19 Eoin Dolan , Zhendong Chi , Haozhe Yang , Luis E. Hueso , Fèlix Casanova

We studied spin-dependent conductance in a normal metal (NM)/NM junction with Dresselhaus spin-orbit coupling (DSOC) and magnetization. As a reference, we also studied the spin-dependent conductance in such a junction with Rashba spin-orbit…

介观与纳米尺度物理 · 物理学 2018-04-03 Daisuke Oshima , Katsuhisa Taguchi , Yukio Tanaka

We investigate the behavior of both pure spin and spin-polarized currents measured with four probe non-local and two probe local configurations up to room temperature and under external gate voltage in a lateral graphene transistor,…

Linear conductance of graphene-based p-n junctions with Rashba spin-orbit coupling is considered theoretically. A square potential step is used to model the junctions, while the coupling is introduced in terms of the Kane-Mele model (C.L.…

介观与纳米尺度物理 · 物理学 2012-06-29 Marek Rataj , Józef Barnaś

We investigate the spin diffusion and transport in a graphene monolayer on SiO$_2$ substrate by means of the microscopic kinetic spin Bloch equation approach. The substrate causes a strong Rashba spin-orbit coupling field $\sim 0.15$ meV,…

介观与纳米尺度物理 · 物理学 2011-07-07 P. Zhang , M. W. Wu

We investigate theoretically the spin-independent tunneling magnetoresistance effect in a graphene monolayer modulated by two parallel ferromagnets deposited on a dielectric layer. For the parallel magnetization configuration, Klein…

介观与纳米尺度物理 · 物理学 2009-11-13 F. Zhai , K. Chang

We theoretically study the charge conductance in anomalous Rashba metal (ARM)/superconductor junctions for various types of the pairing symmetries in the superconductor. The exotic state dubbed ARM, where one of the spin resolved Fermi…

超导电性 · 物理学 2015-11-04 Toshiyuki Fukumoto , Katsuhisa Taguchi , Shingo Kobayashi , Yukio Tanaka

A key concept in the emerging field of spintronics is the electric field control of spin precession via the effective magnetic field generated by the Rashba spin orbit interaction (RSOI). Here, by extensive Density Matrix Renormalization…

强关联电子 · 物理学 2020-07-29 G. L. Rossini , D. C. Cabra , G. I. Japaridze

We report on measurements of quantized conductance in gate-defined quantum point contacts in bilayer graphene that allow the observation of subband splittings due to spin-orbit coupling. The size of this splitting can be tuned from 40 to 80…

The tunability of the dielectric properties induced by the substrate driven interactions (SDI) and the exchange field (M) due to the ferro-magnetic impurities in graphene monolayer on transition metal dichalcogenide (TMDC) (viz., XY2 , X =…

介观与纳米尺度物理 · 物理学 2017-11-22 Partha Goswami

The combination of Rashba spin-orbit coupling and electron correlations can induce unusual phenomena in the metallic interface between SrTiO$_3$ and LaAlO$_3$. We consider effects of Rashba spin-orbit coupling at this interface in the…

强关联电子 · 物理学 2013-02-19 Mark H Fischer , Srinivas Raghu , Eun-Ah Kim

We report the angular dependence of magnetoresistance in two-dimensional electron gas at LaAlO$_3$/SrTiO$_3$ interface. We find that this interfacial magnetoresistance exhibits a similar angular dependence to the spin Hall magnetoresistance…

Long-distance spin transport through anti-ferromagnetic insulators (AFMIs) is a long-standing goal of spintronics research. Unlike conventional spintronics systems, monolayer graphene in quantum Hall regime (QH) offers an unprecedented…

In this work, we study the spin transport at the Ferromagnet$|$Noncentrosymmetric Superconductor (F$|$NCSC) junction of a Ferromagnet$|$Noncentrosymmetric Superconductor$|$Ferromagnet (F$|$NCSC$|$F) spin valve. We investigate the Tunnelling…

超导电性 · 物理学 2019-10-15 Saumen Acharjee , Umananda Dev Goswami

We investigate a novel way to manipulate the spin polarized transmission in a two terminal zigzag graphene nanoribbon in presence of Rashba spin-orbit (SO) interaction with circular shaped cavity engraved into it. A usual technique to…

介观与纳米尺度物理 · 物理学 2018-12-13 Sudin Ganguly , Saurabh Basu , Santanu K. Maiti

We compare classical versus quantum electron transport in recently investigated magnetic focusing devices [S. Bhandari et al., Nano Lett. 16, 1690 (2016)] exposed to the perturbing potential of a scanning gate microscope (SGM). Using the…

介观与纳米尺度物理 · 物理学 2017-04-26 M. D. Petrović , S. P. Milovanović , F. M. Peeters

We study equilibrium pure spin current through tunnelling junctions at zero bias. The two leads of the junctions connected via a thin insulator barrier, can be either a ferromagnetic metal (FM) or a nonmagnetic high-mobility two-dimensional…

其他凝聚态物理 · 物理学 2009-11-11 J. Wang , K. S. Chan

Graphene is hailed as an ideal material for spintronics due to weak intrinsic spin-orbit interaction that facilitates lateral spin transport and tunability of its electronic properties, including a possibility to induce magnetism in…

We consider a disordered graphene layer with anisotropic Rashba spin-orbit coupling subjected to a longitudinal electric field. Using the linear response theory we calculate current-induced spin polarization including in-plane normal and…

介观与纳米尺度物理 · 物理学 2017-09-26 Mir Vahid Hosseini