English
Related papers

Related papers: Harmonic generation in bent graphene with artifici…

200 papers

Hydrogen adatoms are one of the most the promising proposals for the functionalization of graphene. Hydrogen induces narrow resonances near the Dirac energy, which lead to the formation of magnetic moments. Furthermore, they also create…

Mesoscale and Nanoscale Physics · Physics 2018-04-24 Luis A. González-Árraga , J. L. Lado , F. Guinea

We propose realizing the quantum anomalous Hall effect by proximity coupling graphene to an antiferromagnetic insulator that provides both broken time-reversal symmetry and spin-orbit coupling. We illustrate our idea by performing ab initio…

Mesoscale and Nanoscale Physics · Physics 2015-01-21 Zhenhua Qiao , Wei Ren , Hua Chen , L. Bellaiche , Zhenyu Zhang , A. H. MacDonald , Qian Niu

We theoretically study graphene nanoribbons in the presence of spatially varying magnetic fields produced e.g. by nanomagnets. We show both analytically and numerically that an exceptionally large Rashba spin orbit interaction (SOI) of the…

Mesoscale and Nanoscale Physics · Physics 2013-02-04 Jelena Klinovaja , Daniel Loss

The proximity-induced couplings in graphene due to the vicinity of a ferromagnetic insulator are analyzed. We combine general symmetry principles and simple tight-binding descriptions to consider different orientations of the magnetization.…

Mesoscale and Nanoscale Physics · Physics 2019-10-15 Vo Tien Phong , Niels R. Walet , Francisco Guinea

We investigate the effects of Rashba spin-orbit interactions on the electronic band-structure and corresponding wave-functions of graphene. By exactly solving a tight-binding model Hamiltonian we obtain the expected splitting of the bands…

Mesoscale and Nanoscale Physics · Physics 2009-05-08 Mahdi Zarea , Nancy Sandler

Intrinsic and Rashba spin-orbit interactions in strained graphene is studied within the tight-binding (TB) approach. Dependence of Slater-Koster (SK) parameters of graphene on strain are extracted by fitting the \emph{ab initio} band…

Mesoscale and Nanoscale Physics · Physics 2019-02-08 H. Rezaei , A. Phirouznia

The lack of some spatial symmetries in planar devices with Rashba spin-orbit interaction opens the possibility of producing spin polarized electrical currents in absence of external magnetic field or magnetic impurities. We study how the…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Leonor Chico , A. Latgé , Luis Brey

The Rashba spin-orbit coupling arising from structure inversion asymmetry couples spin and momentum degrees of freedom providing a suitable (and very intensively investigated) environment for spintronic effects and devices. Here we show…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Goetz Seibold , Sergio Caprara , Marco Grilli , Roberto Raimondi

Spin-orbit coupling in solids is typically a single-body effect arising from relativity. In this work, we propose a spontaneous generation of spin-orbit coupling from symmetry breaking. A spin-dependent electron-phonon coupling model is…

Strongly Correlated Electrons · Physics 2024-10-23 Xiangyu Zhang , Da Wang , Congjun Wu

We propose the creation and investigation of a system of spin-one fermions in the presence of artificial spin-orbit coupling, via the interaction of three hyperfine states of fermionic atoms to Raman laser fields. We explore the emergence…

Quantum Gases · Physics 2016-09-22 Doga Murat Kurkcuoglu , C. A. R. Sa de Melo

Recent studies have shown that linear electron optics can be used to generate entangled two-particle states from nonentangled ones if additional measurements of charge or parity are performed. We have investigated such nondeterministic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. I. Signal , U. Zuelicke

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…

Mesoscale and Nanoscale Physics · Physics 2022-03-01 Mohammad Alidoust , Klaus Halterman

We consider theoretically ultra-cold interacting bosonic atoms confined to a wire geometry and coupled to the field of an optical cavity. A spin-orbit coupling is induced via Raman transitions employing a cavity mode and a transverse…

Quantum Gases · Physics 2019-04-10 Catalin-Mihai Halati , Ameneh Sheikhan , Corinna Kollath

We map electron spin dynamics from time to space in quantum wires with spatially uniform and oscillating Rashba spin-orbit coupling. The presence of the spin-orbit interaction introduces pseudo-Zeeman couplings of the electron spins to…

Mesoscale and Nanoscale Physics · Physics 2011-11-23 Vanita Srinivasa , Jeremy Levy

We propose a scheme for generating Rashba spin-orbit coupling and perpendicular Zeeman field simultaneously for cold fermionic atoms in a harmonic trap through the coupling between atoms and laser fields. The realization of Rashba…

Quantum Gases · Physics 2010-09-02 Chuanwei Zhang

The naturally weak spin-orbit coupling in Graphene can be largely enhanced by adatom deposition (e.g. Weeks et al. Phys. Rev. X 1, 021001 (2011)). However, the dynamics of the adatoms also induces a coupling between phonons and the electron…

Mesoscale and Nanoscale Physics · Physics 2015-07-29 Jhih-Shih You , Daw-Wei Wang , Miguel A. Cazalilla

We consider a dilute fluorinated graphene nanoribbon as a spin-active element. The fluorine adatoms introduce a local spin-orbit Rashba interaction that induces spin-precession for electron passing by. In the absence of the external…

Mesoscale and Nanoscale Physics · Physics 2017-12-27 Bartlomiej Rzeszotarski , Alina Mrenca-Kolasinska , Bartlomiej Szafran

We investigate electric and magnetic properties of graphene with rotationally symmetric strain. The strain generates large pseudo magnetic field with alternating sign in space, which forms a strongly confined quantum dot connected to six…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Kyung-Joong Kim , Yaroslav Blanter , Kang-Hun Ahn

In this review we will discuss the experimental and theoretical progresses in studying spin-orbit coupled degenerate atomic gases during the last two years. We shall first review a series of pioneering experiments in generating synthetic…

Quantum Gases · Physics 2012-02-03 Hui Zhai

For graphene nanoribbons with Rashba spin-orbit coupling, the peculiar magnetic response due to the presence of a magnetization and geometric confinement are analyzed within a tight-binding model. We observe a sizable transverse…

Mesoscale and Nanoscale Physics · Physics 2021-07-14 Matheus S. M. de Sousa , Manfred Sigrist , Wei Chen