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Highly spin selective transport of electrons through a helically shaped electrostatic potential is demonstrated in the frame of a minimal model approach. The effect is significant even in the case of weak spin-orbit coupling. Two main…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 R. Gutierrez , E. Diaz , R. Naaman , G. Cuniberti

The influence of the Rashba spin-orbit coupling on the electron spin dynamics is investigated for a ballistic semiconductor quantum wire with a finite width. We monitor the spin evolution using the time-dependent Schr\"odinger equation. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Manuel Valin-Rodriguez , Antonio Puente , Llorens Serra

We consider a two-dimensional system of harmonically trapped particles with pseudo-spin-$\frac{1}{2}$ degree of freedom. This degree of freedom is coupled to the particle's momentum via the so-called Rashba spin-orbit interaction. We…

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

Electrons with spin-orbit coupling moving in mesoscopic structures can often exhibit local spin polarization. In this paper, we study the influence of the Rashba coupling on the scattering of two-dimensional electrons from a circular disk.…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Jr-Yu Yeh , Chung-Yu Mou , Ming-Che Chang

Quantum interference effects in rings provide suitable means to control spins at the mesoscopic scale. In this chapter we present the theory underlying spin-induced modulations of unpolarized currents in quantum rings subject to the Rashba…

Mesoscale and Nanoscale Physics · Physics 2018-10-10 Carmine Ortix

We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 M. Cygorek , P. I. Tamborenea , V. M. Axt

It is shown that the interplay of long-range disorder and in-plane magnetic field gives rise to an out-of-plane spin polarization and a finite spin Hall conductivity of the two-dimensional electron gas in the presence of Rashba spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Milletari' , R. Raimondi , P. Schwab

The spin Hall effect in a finite ballistic two-dimensional system with Rashba and Dresselhaus spin-orbit interaction is studied numerically. We find that the spin Hall conductance is very sensitive to the transverse measuring location, the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yanxia Xing , Qing-feng Sun , Jian Wang

We consider the effect of electron-electron interaction on the density of states of disordered paramagnetic conductor in the presence of spin accumulation and magnetic field. We show that interaction correction to electron density of states…

Mesoscale and Nanoscale Physics · Physics 2015-06-12 A. A. Zyuzin , A. Yu. Zyuzin

The movement of the electrons under the simultaneous influence of a scalar periodic potential and of a uniform transversal magnetic field is described by the well-known second order discrete Harper equation. This equation originates from a…

Mesoscale and Nanoscale Physics · Physics 2009-06-19 O. Borchin , E. Papp

We study spin dynamics in a two-dimensional electron gas with a pure gauge non-Abelian spin-orbit field, for which systems with balanced Rashba and Dresselhaus spin-orbit couplings, and the (110)-axis grown GaAs quantum wells are typical…

Mesoscale and Nanoscale Physics · Physics 2010-10-20 I. V. Tokatly , E. Ya. Sherman

Rashba spin-orbit interactions generated by time-dependent electric fields acting on weak links (that couple together non-magnetic macroscopic leads) can magnetize the junction. The Rashba spin-orbit interaction that affects the spins of…

Mesoscale and Nanoscale Physics · Physics 2025-10-23 Debashree Chowdhury , O. Entin-Wohlman , A. Aharony , R. I. Shekhter , M. Jonson

We discuss by analytic means the theory of the high-density limit of the unpolarized two-dimensional electron liquid in the presence of Rashba or Dresselhaus spin-orbit coupling. A generalization of the ring-diagram expansion is performed.…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 Stefano Chesi , Gabriele F. Giuliani

We study the transport of electrons through a single-mode quantum ring with electric field induced Rashba spin-orbit interaction that is subjected to an in-plane magnetic field and weakly coupled to electron reservoirs. Modelling a ring…

Mesoscale and Nanoscale Physics · Physics 2013-09-09 Fateme K. Joibari , Ya. M. Blanter , Gerrit E. W. Bauer

Spin transport properties of a coupled bilayer electron gas with Rashba spin-orbit coupling are studied. The definition of the spin currents in each layer as well as the corresponding continuity-like equations in the bilayer system are…

Mesoscale and Nanoscale Physics · Physics 2007-12-22 Pei-Qing Jin , You-Quan Li

We calculate the frequency dependent spin susceptibilities for a two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit interaction. The resonances of the susceptibilities depends on the relative values of the Rashba and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Sigurdur I. Erlingsson , John Schliemann , Daniel Loss

We study the effects of spin accumulation (inside reservoirs) on electronic transport with tunneling and reflections at the gates of a quantum dot. Within the stub model, the calculation focus on the current-current correlation function for…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 J. G. G. S. Ramos , A. L. R. Barbosa , D. Bazeia , M. S. Hussein

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 numerically the spin polarization of the current in the presence of Rashba spin-orbit interaction in a T-shaped conductor proposed by A.A. Kiselev and K.W. Kim (Appl. Phys. Lett. {\bf 78} 775 (2001)). The recursive Green…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Yamamoto , T. Ohtsuki , B. Kramer