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We investigate the effects of Rashba and intrinsic spin-orbit couplings in graphynes. First, we develop a general method to address spin-orbit couplings within the tight-binding theory. Then, we apply this method to $\alpha$, $\beta$, and…

介观与纳米尺度物理 · 物理学 2014-11-13 Guido van Miert , Vladimir Juricic , Cristiane Morais Smith

Spin-orbit coupling (SOC) emerging at the interfaces of superconducting magnetic tunnel junctions is at the heart of multiple unprecedented physical phenomena, covering triplet proximity effects induced by unconventional (spin-flip) Andreev…

超导电性 · 物理学 2025-02-19 Andreas Costa , Jaroslav Fabian

We investigate the effect of the twist angle on the proximity spin-orbit coupling (SOC) in graphene/NbSe$_2$ heterostructures from first principles. The low-energy Dirac bands of several different commensurate twisted supercells are fitted…

介观与纳米尺度物理 · 物理学 2024-05-01 Thomas Naimer , Martin Gmitra , Jaroslav Fabian

We study the transverse electron focusing in a two dimensional electron gas with Rashba spin-orbit coupling. We show that the interplay between the external magnetic field and the spin-orbit coupling gives two branches of states with…

介观与纳米尺度物理 · 物理学 2007-05-23 Gonzalo Usaj , C. A. Balseiro

The possibility of utilizing the rich spin-dependent properties of graphene has attracted great attention in pursuit of spintronics advances. The promise of high-speed and low-energy consumption devices motivates a search for layered…

We report the observation of current-induced spin polarization, the Rashba-Edelstein effect (REE), and its Onsager reciprocal phenomenon, the spin galvanic effect (SGE), in a few-layer graphene/2H-TaS2 heterostructure at room temperature.…

Graphene-based van der Waals heterostructures take advantage of tailoring spin-orbit coupling (SOC) in the graphene layer by proximity effect. At long-wavelength -- saddled by the electronic states near the Dirac points -- the proximitized…

介观与纳米尺度物理 · 物理学 2024-02-22 Wun-Hao Kang , Michael Barth , Aitor Garcia-Ruiz , Alina Mreńca-Kolasińska , Ming-Hao Liu , Denis Kochan

One of the exciting features of two-dimensional (2D) materials is their electronic and optical tunability through strain engineering. Previously, we found a class of 2D ferroelectric Rashba semiconductors PbX (X = S, Se, Te) with tunable…

材料科学 · 物理学 2018-06-29 Paul Z. Hanakata , A. S. Rodin , Harold S. Park , David K. Campbell , A. H. Castro Neto

Inelastic scattering off magnetic impurities in a spin-chiral two-dimensional electron gas, e.g., the Rashba system, is shown to generate topological changes in the spin texture of the electron waves emanating from the scattering center.…

介观与纳米尺度物理 · 物理学 2015-09-10 J. Fransson

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

Van der Waals interactions with transition metal dichalcogenides was shown to induce strong spin-orbit coupling (SOC) in graphene, offering great promises to combine large experimental flexibility of graphene with unique tuning capabilities…

介观与纳米尺度物理 · 物理学 2023-10-03 Qing Rao , Wun-Hao Kang , Hongxia Xue , Ziqing Ye , Xuemeng Feng , Kenji Watanabe , Takashi Taniguchi , Ning Wang , Ming-Hao Liu , Dong-Keun Ki

We propose an experimental realization of the Spin Hall effect in graphene by illuminating a graphene sheet on top of a substrate with circularly polarized monochromatic light. The substrate induces a controllable Rashba type spin-orbit…

介观与纳米尺度物理 · 物理学 2020-04-22 Alexander Lopez , Rafael Molina

We demonstrate that the spin orientation of an electron propagating in a one-dimensional nanostructure with Rashba spin-orbit (SO) coupling can be manipulated on demand by changing the geometry of the nanosystem. Shape deformations that…

介观与纳米尺度物理 · 物理学 2017-01-31 Zu-Jian Ying , Paola Gentile , Carmine Ortix , Mario Cuoco

We investigate the production of spin-polarized currents in corrugated graphene nanoribbons. Such corrugations are modeled as multiple regions with Rashba spin-orbit interactions, where concave and convex curvatures are treated as Rashba…

介观与纳米尺度物理 · 物理学 2020-07-08 Hernán Santos , A. Latgé , L. Brey , Leonor Chico

Spintronics---the all-electrical control of the electron spin for quantum or classical information storage and processing---is one of the most promising applications of the two-dimensional material graphene. Although pristine graphene has…

介观与纳米尺度物理 · 物理学 2018-10-24 Chunli Huang , Y. D. Chong , Miguel. A. Cazalilla

We present a theoretical study of two-dimensional spatially and temporally varying magnetic textures in the presence of spin-orbit coupling (SOC) of both the Rashba and Dresselhaus types. We show that the effective gauge field due to these…

介观与纳米尺度物理 · 物理学 2018-12-05 C. A. Akosa , A. Takeuchi , Z. Yuan , G. Tatara

We study the spin-dependent electronic transport through a one-dimensional ballistic quantum wire in the presence of Rashba spin-orbit interaction. In particular, we consider the effect of the spin-orbit interaction resulting from the…

介观与纳米尺度物理 · 物理学 2009-11-13 J. E. Birkholz , V. Meden

Transition metal dichalcogenide (TMD) monolayers MXY (M=Mo, W, X(not equal to)Y=S, Se, Te) are two-dimensional polar semiconductors. Setting WSeTe monolayer as an example and using density functional theory calculations, we investigate the…

We have studied the effect of spin-orbital coupling (SOC) on electronic transport properties of the thermoelectric material $\beta$-K$_{2}$Bi$_{8}$Se$_{13}$ via magnetoresistance (MR) measurements. We found that the strong SOC in this…

介观与纳米尺度物理 · 物理学 2014-02-18 J. Hu , J. Y. Liu , Z. Q. Mao

The electronic and optoelectronic properties of two dimensional materials have been extensively explored in graphene and layered transition metal dichalcogenides (TMDs). Spintronics in these two-dimensional materials could provide novel…