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Spin carriers subject to Dresselhaus [110] (D110) spin-orbit coupling (SOC) gather null spin phases in closed circuits, contrary to usual Rashba and Dresselhaus [001] SOC. We show that D110 spin phases can be activated in square circuits by…

Mesoscale and Nanoscale Physics · Physics 2024-10-30 E. J. Rodríguez , A. A. Reynoso , J. P. Baltanás , J. Nitta , D. Frustaglia

We investigate the electron transport through a mesoscopic ring side-coupled with a quantum dot(QD) in the presence of Rashba spin-orbit(SO) interaction. It is shown that both the Fano resonance and the spin interference effects play…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Guo-Hui Ding , Bing Dong

Theory of weak localization in two-dimensional high-mobility semiconductor systems is developed with allowance for the spin-orbit interaction. The obtained expressions for anomalous magnetoresistance are valid in the whole range of…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 M. M. Glazov , L. E. Golub

Recently, we have found an additional spin-orbit (SO) interaction in quantum wells with two subbands [Phys. Rev. Lett. 99, 076603 (2007)]. This new SO term is non-zero even in symmetric geometries, as it arises from the intersubband…

Mesoscale and Nanoscale Physics · Physics 2008-10-20 Rafael S. Calsaverini , Esmerindo Bernardes , J. Carlos Egues , Daniel Loss

Rashba and linear Dresselhaus interactions are believed to yield dominant contribution to the spin splitting of two-dimensional electrons in the quantum wells based on A$_3$B$_5$ compounds. We show that the interfacial spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2018-03-12 Zh. A. Devizorova , V. A. Volkov

To demonstrate the role played by the von Neumann entropy spectra in quantum phase transitions we investigate the one-dimensional anisotropic SU(2)$\otimes XXZ$ spin-orbital model with negative exchange parameter. In the case of classical…

Strongly Correlated Electrons · Physics 2015-08-06 Wen-Long You , Andrzej M. Oleś , Peter Horsch

The beating pattern of Shubnikov-de Haas oscillations in 2D electron system in the presence of a Rashba zero-field spin splitting is reproduced. It is shown, taking into account the Zeeman splitting, that the explicit formulae for the node…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. V. Cheremisin , A. S. Furman

We theoretically study electronic transport through a region with inhomogeneous Rashba spin-orbit (RSO) coupling placed between two normal regions in a monolayer graphene. The inhomogeneous RSO region is characterized by linearly varying…

Mesoscale and Nanoscale Physics · Physics 2016-01-21 Leila Razzaghi , Mir Vahid Hosseini

We study the effect of anisotropy of the Rashba coupling on the extrinsic spin Hall effect due to spin-orbit active adatoms on graphene. In addition to the intrinsic spin-orbit coupling, a generalized anisotropic Rashba coupling arising…

Mesoscale and Nanoscale Physics · Physics 2016-03-01 H-Y. Yang , Chunli Huang , Hector Ochoa , Miguel A. Cazalilla

Broken symmetries in graphene affect the massless nature of its charge carriers. We present an analysis of scattering by defects in graphene in the presence of spin-orbit interactions (SOIs). A characteristic constant ratio ($\simeq 2$) of…

Mesoscale and Nanoscale Physics · Physics 2014-04-10 Mahmoud M. Asmar , Sergio E. Ulloa

The influence of Rashba spin-orbit coupling (SOC) on superconducting correlations in thin-film superconductor/antiferromagnet (S/AF) structures with compensated interfaces is studied. A unique effect of anisotropic enhancement of…

Superconductivity · Physics 2023-10-17 G. A. Bobkov , I. V. Bobkova , A. A. Golubov

The spin-orbit splitting of the electron levels in a two-dimensional quantum dot in a perpendicular magnetic field is studied. It is shown that at the point of an accidental degeneracy of the two lowest levels above the ground state the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Denis V. Bulaev , Daniel Loss

The authors investigate quantum transport in a narrow constriction fabricated by narrow band gap semiconductor materials with spin-orbit (SO) couplings. We consider the Rashba-Dresselhaus (RD) spin-orbit interactions (SOIs) and the Zeeman…

Mesoscale and Nanoscale Physics · Physics 2012-09-27 Chi-Shung Tang , Shu-Yu Chang , Shun-Jen Cheng

One-dimensional quantum rings with Rashba and Dresselhaus spin-orbit couplings are studied analytically and are in perfect agreement with the numerical results. The topological charge of the spin field defined by the winding number along…

Mesoscale and Nanoscale Physics · Physics 2019-11-06 Shenglin Peng , Wenchen Luo , Fangping Ouyang , Tapash Chakraborty

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…

Mesoscale and Nanoscale Physics · Physics 2024-02-22 Wun-Hao Kang , Michael Barth , Aitor Garcia-Ruiz , Alina Mreńca-Kolasińska , Ming-Hao Liu , Denis Kochan

Spin-orbit coupling plays an important role in various properties of very different materials. Moreover efforts are underway to control the degree and quality of spin-orbit coupling in materials with a concomitant control of transport…

Mesoscale and Nanoscale Physics · Physics 2013-10-17 Zhou Li , F. Marsiglio , J. P. Carbotte

We have studied the spin-orbit interaction in a high mobility two-dimensional electron gas in a GaInAs/InP heterostructure as a function of an applied gate voltage as well as a function of temperature. Highly sensitive magnetotransport…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Vitaliy A. Guzenko , Thomas Schäpers , Hilde Hardtdegen

When subjected to a linearly polarized terahertz pulse, a mesoscopic ring endowed with spin-orbit interaction (SOI) of the Rashba-Dresselhaus type exhibits nonuniform azimuthal charge and spin distributions. Both types of SOI couplings are…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 Marian Nita , D. C. Marinescu , Bogdan Ostahie , Andrei Manolescu , Vidar Gudmundsson

Spin textures of one or two electrons in a quantum dot with Rashba or Dresselhaus spin-orbit couplings reveal several intriguing properties. We show that even at the single-electron level spin vortices with different topological charges…

Mesoscale and Nanoscale Physics · Physics 2019-01-25 Wenchen Luo , Amin Naseri , Jesko Sirker , Tapash Chakraborty

By calculating the density response function we identify the excitation spectrum of a Bose-Einstein condensate with equal Rashba and Dresselhaus spin-orbit coupling. We find that the velocity of sound along the direction of spin-orbit…

Quantum Gases · Physics 2013-03-29 Giovanni I. Martone , Yun Li , Lev P. Pitaevskii , Sandro Stringari