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Related papers: Spin Hall Conductivity on the Anisotropic Triangul…

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Spin relaxation can be greatly enhanced in narrow channels of two-dimensional electron gas due to ballistic spin resonance, which is mediated by spin-orbit interaction for trajectories that bounce rapidly between channel walls. The channel…

Mesoscale and Nanoscale Physics · Physics 2010-09-30 W. W. Yu , S. M. Frolov , S. Luescher , J. A. Folk , W. Wegscheider

We report a thorough theoretical investigation on the quantum transport of a disordered four terminal device in the presence of Rashba spin orbit coupling (RSOC) in two dimensions. Specifically we compute the behaviour of the longitudinal…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Sudin Ganguly , Saurabh Basu

We show how spin-orbit coupling and Berry phase can appear in two-dimensional optical lattices by coupling atoms' internal degrees of freedom to radiation. The Rashba Hamiltonian, a standard description of spin-orbit coupling for…

Soft Condensed Matter · Physics 2007-05-23 Artem M. Dudarev , Roberto B. Diener , Iacopo Carusotto , Qian Niu

Several spin-orbit effects allow performing spin to charge inter-conversion: the spin Hall effects, the Rashba effect, or the spin-momentum locking in topological insulators. Here we focus on how the detection of this inter-conversion can…

Materials Science · Physics 2018-09-18 V. T. Pham , L. Vila , G. Zahnd , P. Noël , A. Marty , J. P. Attané

We consider the model of strongly-correlated system of electrons described by an extended Falicov-Kimball Hamiltonian where the stability of some axial and diagonal striped phases was proved. Introducing a next-nearest-neighbor hopping,…

Strongly Correlated Electrons · Physics 2009-11-11 V. Derzhko

We study the anomalous Hall effect arising from the altermagnetic order and spin-orbit interaction in doped FeSb$_2$. To investigate the anomalous transport, we have constructed a tight-binding model of FeSb$_2$. We separately considered…

Strongly Correlated Electrons · Physics 2024-09-20 Lotan Attias , Alex Levchenko , Maxim Khodas

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice…

Strongly Correlated Electrons · Physics 2017-01-04 Alexander C. Bornstein , Benjamin J. Chapman , Nirmal J. Ghimire , David G. Mandrus , David S. Parker , Minhyea Lee

We investigate effects of spin-orbit splitting on electronic transport in a spin valve consisting of a large quantum dot defined on a two-dimensional electron gas with two ferromagnetic contacts. In the presence of both structure inversion…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. Saarikoski , W. Wetzels , G. E. W. Bauer

The robust effect of curvature on spin polarization is reported in a three-terminal bridge system where the bridging material is subjected to Rashba spin-orbit interaction. The results are examined considering two different geometric…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Santanu K. Maiti

We investigate the effect of spin orbit coupling on proximity induced superconductivity in a normal metal attached to a superconductor. Specifically, we consider a heterostructure where the presence of interfaces gives rise to a Rashba spin…

Superconductivity · Physics 2023-05-30 Vivek Mishra , Yu Li , Fu-Chun Zhang , Stefan Kirchner

The influence of Rashba spin-orbit coupling on zero conductance resonances appearing in one dimensional ring asymmetrically coupled to two leads is investigated. For this purpose, the transmission function of the corresponding one-electron…

Mesoscale and Nanoscale Physics · Physics 2012-06-14 Urs Aeberhard , Katsunori Wakabayashi , Manfred Sigrist

We consider a tight-binding model with the nearest neighbour hopping integrals on the honeycomb lattice in a magnetic field. Assuming one of the three hopping integrals, which we denote t_a, can take a different value from the two others,…

Mesoscale and Nanoscale Physics · Physics 2009-04-03 Masatoshi Sato , Daijiro Tobe , Mahito Kohmoto

We investigate the intrinsic orbital Hall conductivity (OHC) and spin Hall conductivity (SHC) in a bismuth semimetal, by employing an sp-orbital tight-binding model. We report a notable difference between the anisotropy of OHC and SHC whose…

Strongly Correlated Electrons · Physics 2023-06-21 Guanxiong Qu , Gen Tatara

We theoretically investigate a two-dimensional harmonically-trapped gas of identical atoms with Rashba spin-orbit coupling and no interatomic interactions. In analogy with the spin Hall effect in uniform space, the gas exhibits a spin Hall…

Quantum Gases · Physics 2017-11-28 J. Armaitis , J. Ruseckas , H. T. C. Stoof , R. A. Duine

The well-known experimentally observed \textit{sp}-derived Au(111) Shockley surface states with Rashba spin splitting are perfectly fit by an effective tight-binding model, considering a two-dimensional hexagonal lattice with…

Mesoscale and Nanoscale Physics · Physics 2008-11-15 Ming-Hao Liu , Son-Hsien Chen , Ching-Ray Chang

We present calculations of the frequency-dependent spin susceptibility tensor of a two-dimensional electron gas with competing Rashba and Dresselhaus spin-orbit interaction. It is shown that the interplay between both types of spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Catalina López-Bastidas , Jesús A. Maytorena , Francisco Mireles

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…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Jesús A. Maytorena , Catalina López-Bastidas , Francisco Mireles

A nonequilibrium Green's function approach is employed to investigate the spin-Hall effect in diffusive two-dimensional electron systems with Rashba spin-orbit interaction. Considering a long-range electron-impurity scattering potential in…

Materials Science · Physics 2009-11-11 S. Y. Liu , X. L. Lei

Miniature Hall-probe arrays were used to measure the critical current densities for the three main directions of vortex motion in the stoichiometric LiFeAs superconductor. These correspond to vortices oriented along the c-axis moving…

Concept of the topological order is useful to characterize anisotropic superconductivities. The spin Hall conductance distinguishes superconductivities with the same symmetry. The Chern number for the spin Hall conductance is given by the…

Superconductivity · Physics 2009-11-10 Y. Hatsugai , S. Ryu