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The quantum transmission problem for a particle moving in a quantum point contact in the presence of a Rashba spin-orbit interaction and applied magnetic field is solved semiclassically. A strong Rashba interaction and parallel magnetic…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 Tommy Li

Recently a new propagating mode of coupled charge and spin oscillations was predicted in a two dimensional electron gas with a sufficiently strong Rashba interaction. We show that Coulomb interactions qualitatively modifies the spectrum and…

Materials Science · Physics 2007-05-23 Ya. B. Bazaliy , B. V. Bazaliy , G. Guntherodt , S. S. P. Parkin

We use numerically exact diagonalization to calculate the spin-orbit and phonon-induced triplet-singlet relaxation rate in a two-electron quantum dot exposed to a tilted magnetic field. Our scheme includes a three-dimensional description of…

Strongly Correlated Electrons · Physics 2012-04-19 J. P. Hansen , S. A. Sørngård , M. Førre , E. Rasanen

We study the out-of-equilibrium current through a multilevel quantum dot contacted to two superconducting leads and in the presence of Rashba and Dresselhaus spin-orbit couplings, in the regime of strong dot-lead coupling. The multiple…

Mesoscale and Nanoscale Physics · Physics 2008-10-22 Fabrizio Dolcini , Luca Dell'Anna

We present a theoretical study of magnetoplasmon spectrum of a two-dimensional electron gas in the presence of Rashba spin-orbit interaction (RSOI), one-dimensional weak electric modulation and a perpendicular magnetic field. The…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 M. Tahir , K. Sabeeh

We characterize numerically and analytically the signatures of the spin-orbit interaction in a two-electron GaAs double quantum dot in the presence of an external magnetic field. In particular, we obtain the return probability of the…

Mesoscale and Nanoscale Physics · Physics 2017-05-11 Juan E. Rolon , Ernesto Cota , Sergio E. Ulloa

The Josephson current through a 1D quantum wire with Rashba spin-orbit and electron-electron interactions is calculated. We show that the interplay of Rashba and Zeeman interactions gives rise to a supercurrent through the 1D conductor that…

Superconductivity · Physics 2009-11-10 I. V. Krive , A. M. Kadigrobov , R. I. Shekhter , M. Jonson

Electron transport properties in a triple-quantum-dot ring with three terminals are theoretically studied. By introducing local Rashba spin-orbit interaction on an individual quantum dot, we calculate the charge and spin currents in one…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Weijiang Gong , Yisong Zheng , Tianquan Lv

We study the pseudospin and spin dynamical effects in single-layer silicene due to a perpendicular electric field periodically driven and its interplay with the intrinsic and extrinsic (Rashba) spin-orbit interaction. We find that the spin…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 Alexander Lopez , Francisco Mireles , John Schliemann , Benjamin Santos

We investigate theoretically how the proximity effect in superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling manifests in the density of states and critical temperature. To describe a general scenario, we allow…

Superconductivity · Physics 2015-08-04 Sol H. Jacobsen , Jabir Ali Ouassou , Jacob Linder

We examine electronic transport in a spin-blockaded double quantum dot. We show that by tuning the strength of the spin-orbit interaction the current flowing through the double dot exhibits a dip at zero magnetic field or a peak at a…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 G. Giavaras , Neill Lambert , Franco Nori

We studied the electric current induced in a two-dimensional electron gas by the spin current, in the presence of Rashba and cubic Dresselhaus spin-orbit interactions. We found out that the factor relating these currents is not universal,…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 L. Y. Wang , A. G. Mal'shukov , C. S. Chu

Thermoelectric transport phenomena in a single-level quantum dot coupled to ferromagnetic leads are considered theoretically in the Kondo regime. The dot is described by the Anderson model with Rashba type spin-orbit interaction. The…

Mesoscale and Nanoscale Physics · Physics 2014-12-10 Łukasz Karwacki , Piotr Trocha , Józef Barnaś

We theoretically explore Josephson diode effect (JDE) in superconductor/quantum dot (QD)/superconductor junction in the presence of a magnetic field and Rashba spin-orbit interaction (RSOI). We calculate the Josephson current in our QD…

Superconductivity · Physics 2024-05-08 Debika Debnath , Paramita Dutta

The magnetic state of a quantum dot attached to superconducting leads is experimentally shown to be controlled by the superconducting phase difference across the dot. This is done by probing the relation between the Josephson current and…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 R. Delagrange , D. J. Luitz , R. Weil , A. Kasumov , V. Meden , H. Bouchiat , R. Deblock

We present the first findings of the spin transistor effect in the Rashba gate-controlled ring embedded in the p-type self-assembled silicon quantum well that is prepared on the n-type Si (100) surface. The coherence and phase sensitivity…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 N. T. Bagraev , N. G. Galkin , W. Gehlhoff , L. E. Klyachkin , A. M. Malyarenko , I. A. Shelykh

We study the effects of dipolar interactions on a Bose-Einstein condensate with synthetically generated Rashba spin-orbit coupling. The dipolar interaction we consider includes terms that couple spin and orbital angular momentum in a way…

Quantum Gases · Physics 2013-11-12 Ryan M. Wilson , Brandon M. Anderson , Charles W. Clark

We develop a theory of designing slit experiments in two-dimensional electron systems with the Rashba spin-orbit interaction. By simulating the spatiotemporal dynamics of electrons passing through a single slit or a double slit, we find…

Mesoscale and Nanoscale Physics · Physics 2020-01-22 Kotaro Shimizu , Masahito Mochizuki

We review the effects of the pair spin-orbit interaction (PSOI) in Rashba materials. The PSOI is the electron-electron interaction component that depends on the spin and momentum of the electrons. Being produced by the Coulomb fields of…

Strongly Correlated Electrons · Physics 2023-02-06 Yasha Gindikin , Vladimir A. Sablikov

A non-equilibrium state in a Rashba system under an in-plane magnetic field is identified as the origin of the Josephson diode effect. This state is induced by a current bias--necessary for measuring the current-voltage…

Superconductivity · Physics 2026-04-06 Michiyasu Mori , Wataru Koshibae , Sadamichi Maekawa