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相关论文: Rashba effect in the graphene/Ni(111) system

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Proximity-induced fine features and spin-textures of the electronic bands in graphene-based van der Waals heterostructures can be explored from the point of tailoring a twist angle. Here we study spin-orbit coupling and exchange coupling…

介观与纳米尺度物理 · 物理学 2023-02-28 Karol Szałowski , Marko Milivojević , Denis Kochan , Martin Gmitra

We predict two spin-dependent transport phenomena in two-dimensional electron systems, which are induced by spatially fluctuating Rashba spin-orbit interaction. When the electron gas is magnetized, the random Rashba interaction leads to the…

介观与纳米尺度物理 · 物理学 2012-11-26 V. K. Dugaev , M. Inglot , E. Ya. Sherman , J. Berakdar , J. Barnas

We present a detailed analysis of the spin-flip excitations induced by a periodic time-dependent electric field in the Rashba prototype Au(111) noble metal surface. Our calculations incorporate the full spinor structure of the…

材料科学 · 物理学 2013-09-18 Julen Ibañez-Azpiroz , Aitor Bergara , Evgeny Ya. Sherman , Asier Eiguren

Starting from a low-energy effective Hamiltonian model, we theoretically calculate the dynamical optical conductivity and permittivity tensor of a magnetized graphene layer with Rashba spin orbit coupling (SOC). Our results reveal a…

介观与纳米尺度物理 · 物理学 2022-03-01 Mohammad Alidoust , Klaus Halterman

Metal/graphene interfaces generated by electrode deposition induce barriers or potential modulations influencing the electronic transport properties of graphene based devices. However, their impact on the local mechanical properties of…

介观与纳米尺度物理 · 物理学 2014-02-21 Zoltán Osváth , François Lefloch , Vincent Bouchiat , Claude Chapelier

Recent experiments find the signal of giant nonlocal resistance $R_{NL}$ in H-shaped graphene samples due to the spin/valley Hall effect. Interestingly, when the Fermi energy deviates from the Dirac point, $R_{NL}$ decreases to zero much…

介观与纳米尺度物理 · 物理学 2016-07-08 Zibo Wang , Haiwen Liu , Hua Jiang , X. C. Xie

We show that the carrier-mediated exchange interaction, the so-called RKKY coupling, between two magnetic impurity moments in graphene is significantly modified in the presence of electron-electron interactions. Using the mean-field…

强关联电子 · 物理学 2013-05-29 Annica M. Black-Schaffer

Graphene, due to its exceptional properties, is a promising material for nanotechnology applications. In this context, the ability to tune the properties of graphene-based materials and devices with the incorporation of defects and…

介观与纳米尺度物理 · 物理学 2011-12-06 Elton J. G. Santos , Andrés Ayuela , Daniel Sánchez-Portal

The ability of spin-orbit interactions to convert charge current into spin current, most often in the bulk of heavy metal thin films, has been the hallmark of spintronics in the last decade. In this study, we demonstrate how the insertion…

介观与纳米尺度物理 · 物理学 2022-06-27 S. Krishnia , Y. Sassi , F. Ajejas , N. Reyren , S. Collin , A. Fert , J. -M. George , V. Cros , H. Jaffres

It was recently shown that BiTeI, a semiconductor with polar crystal structure, possesses a giant spin-splitting of electrons, which has been interpreted in terms of Rashba-type spin-orbit coupling. Here, we use high field magneto-optical…

介观与纳米尺度物理 · 物理学 2019-10-16 S. Bordacs , M. Orlita , M. Sikula , H. Murakawa , Y. Tokura

We study the edge states in a two dimensional electron gas with a transverse magnetic field and Rashba spin-orbit coupling. In the bulk, the interplay between the external field perpendicular to the gas plane and the spin-orbit coupling…

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

Here we report the photoemission studies of intercalation process of Fe underneath graphene layer on Ni(111). The process of intercalation was monitored via XPS of corresponding core levels and UPS of the graphene-derived $\pi$ states in…

材料科学 · 物理学 2009-11-13 Yu. S. Dedkov , M. Fonin , U. Rüdiger , C. Laubschat

We investigate the effect that the intrinsic spin-orbit and the inter- and intra-layer Rashba interactions have on the energy spectrum of either an unbiased or a biased graphene bilayer. We find that under certain conditions, a Dirac cone…

介观与纳米尺度物理 · 物理学 2010-04-01 Ralph van Gelderen , C. Morais Smith

We investigate spin-to-charge conversion via the Edelstein effect in a 2D Rashba electron gas using the semiclassical Boltzmann approach. We analyze the magnetization arising from the direct Edelstein effect, taking into account an…

介观与纳米尺度物理 · 物理学 2025-03-27 Irene Gaiardoni , Mattia Trama , Alfonso Maiellaro , Claudio Guarcello , Francesco Romeo , Roberta Citro

Employing the spin degree of freedom of charge carriers offers the possibility to extend the functionality of conventional electronic devices, while colloidal chemistry can be used to synthesize inexpensive and tuneable nanomaterials. In…

We studied how the electron-electron (e-e) interaction enhances the strength of the Rashba spin-orbit coupling (RSOC) and opens the possibility of generating a spin-polarized output current from an unpolarized electric current without any…

介观与纳米尺度物理 · 物理学 2016-08-23 R. Farghadan , A. Sehat

Motivated by the remarkable experimental control of synthetic gauge fields in ultracold atomic systems, we investigate the effect of an artificial Rashba spin-orbit coupling on the spin polarization of a two-dimensional repulsive Fermi gas.…

Theory of weak localization in graphene with Rashba splitting of energy spectrum is developed. Anomalous magnetoresistance caused by weak localization is calculated with account for inter- and intravalley, spin-orbit and spin-valley…

介观与纳米尺度物理 · 物理学 2023-10-13 L. E. Golub

Spin dependent transport in a three-terminal graphene nanoribbon (GNR) is investigated in presence of Rashba spin-orbit interaction. Such a three-terminal structure is shown to be highly effective in filtering electron spins from an…

介观与纳米尺度物理 · 物理学 2018-09-20 Sudin Ganguly , Saurabh Basu , Santanu K. Maiti

An elegant approach on the synthesis of graphene on the strong ferromagnetic (FM) material Mn$_5$Ge$_3$ is proposed via intercalation of Mn in the graphene-Ge(111) interface. According to the DFT calculations, graphene in this strongly…

材料科学 · 物理学 2019-08-12 Elena Voloshina , Yuriy Dedkov
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