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An alternating electric field, applied to a quantum dot, couples to the electron spin via the spin-orbit interaction. We analyze different types of spin-orbit coupling known in the literature and find two efficient mechanisms of spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Vitaly N. Golovach , Massoud Borhani , Daniel Loss

We explore the two-body spectra of spin-$1/2$ fermions in isotropic harmonic traps with external spin-orbit potentials and short range two-body interactions. Using a truncated basis of total angular momentum eigenstates, non-perturbative…

Quantum Gases · Physics 2015-04-16 Cory D. Schillaci , Thomas C. Luu

We consider determination of spin-orbit (SO) coupling constants for the two-dimensional electron gas from measurements of electric properties in rotated in-plane magnetic field. %Due to the interplay Due to the SO coupling the electron…

Mesoscale and Nanoscale Physics · Physics 2016-10-05 K. Kolasiński , H. Sellier , B. Szafran

The band structure and magnetotransport of a two-dimensional electron gas (2DEG), in the presence of the Rashba (RSOI) and Dresselhaus (DSOI) terms of the spin-orbit interaction and of a perpendicular magnetic field, is investigated. Exact…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 X. F. Wang , P. Vasilopoulos

When the Rashba and Dresslhaus spin-orbit coupling are both presented for a two-dimensional electron in a perpendicular magnetic field, a striking resemblance to anisotropic quantum Rabi model in quantum optics is found. We perform a…

Quantum Gases · Physics 2021-07-13 Rui Zhang , Yuan-Chuan Biao , Wen-Long You , Xiao-Guang Wang , Yu-Yu Zhang

The spin-orbit interaction of two-dimensional (2D) electrons in semiconductor quantum wells is usually considered to be determined by the band profile of a heterostructure. In the GaAs/AlGaAs type heterosystems, this interaction consists of…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 P. S. Alekseev , M. O. Nestoklon

We propose an experimental scheme to study spin-orbit coupling effects in a of two-dimensional (2D) Fermi atomic gas cloud by coupling its internal electronic states (pseudospins) to radiation in a delta configuration. The induced…

Statistical Mechanics · Physics 2009-11-13 Xiong-Jun Liu , Mario F. Borunda , Xin Liu , Jairo Sinova

We calculate the transport relaxation time $\tau _{\rm tr}$ and spin transport relaxation time $\tau _{s,{\rm tr}}$ for a two-dimensional electron gas with spatially fluctuating Rashba spin-orbit interaction. These relaxation times…

Mesoscale and Nanoscale Physics · Physics 2018-06-27 S. Kudla , A. Dyrdal , V. K. Dugaev , E. Ya. Sherman , J. Barnas

We theoretically consider spin pumping in a junction between a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) in which the Rashba and Dresselhaus spin-orbit interactions coexist. Using second-order perturbation…

Mesoscale and Nanoscale Physics · Physics 2021-08-10 M. Yama , M. Tatsuno , T. Kato , M. Matsuo

The ability to control the spin-orbit interaction of light in optical microresonators is of fundamental importance for future photonics. Organic microcrystals, due to their giant optical anisotropy, play a crucial role in spin-optics and…

Optics · Physics 2022-01-25 Jiahuan Ren , Qing Liao , Xuekai Ma , Stefan Schumacher , Jiannian Yao , Hongbing Fu

Spin properties of single electron states in laterally coupled quantum dots in the presence of a perpendicular magnetic field are studied by exact numerical diagonalization. Dresselhaus (linear and cubic) and Bychkov-Rashba spin-orbit…

Other Condensed Matter · Physics 2007-05-23 Peter Stano , Jaroslav Fabian

We have studied transport properties in a two-dimensional electron gas with equal Rashba and Dresselhaus spin-orbit interactions under a perpendicular magnetic field. By employing the exact solution for this system, we found resonant charge…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Degang Zhang , Yao-Ming Mu , C. S. Ting

The coexistence of Rashba and Dresselhaus spin-orbit interactions (SOIs) in semiconductor quantum wells leads to an anisotropic effective field coupled to carriers' spins. We demonstrate a gate-controlled anisotropy in Aharonov-Casher (AC)…

Mesoscale and Nanoscale Physics · Physics 2018-12-12 Fumiya Nagasawa , Andres A. Reynoso , José Pablo Baltanás , Diego Frustaglia , Henri Saarikoski , Junsaku Nitta

We investigate systematically how the interplay between Rashba spin-orbit interaction and Zeeman coupling affects the electron transport and the spin dynamics in InGaAs-based 2D electron gases. From the quantitative analysis of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 F. E. Meijer , A. F. Morpurgo , T. M. Klapwijk , T. Koga , J. Nitta

We solved the Schr\"odinger problem for a two-dimensional electron gas (2DEG) with the Rashba spin-orbit interaction in the presence of a strong high-frequency electromagnetic field (dressing field). The found eigenfunctions and…

Mesoscale and Nanoscale Physics · Physics 2015-12-07 A. A. Pervishko , O. V. Kibis , S. Morina , I. A. Shelykh

We investigate theoretically radio-frequency spectroscopy of weakly bound molecules in an ultracold spin-orbit-coupled atomic Fermi gas. We consider two cases with either equal Rashba and Dresselhaus coupling or pure Rashba coupling. The…

Quantum Gases · Physics 2013-02-04 Hui Hu , Han Pu , Jing Zhang , Shi-Guo Peng , Xia-Ji Liu

We study theoretically the effect of spin-orbit coupling on quantum well excitons in a strong magnetic field. We show that, in the presence of an in-plane field component, the excitonic absorption spectrum develops a double-peak structure…

Mesoscale and Nanoscale Physics · Physics 2014-11-18 O. Olendski , Q. L. Williams , T. V. Shahbazyan

We study theoretically the differential conductance at a junction between a time reversal symmetry broken spin orbit coupled system with a tunable band gap and a superconductor. We look for spin-dependent Andreev reflection (i.e, sub-gap…

Mesoscale and Nanoscale Physics · Physics 2018-12-14 Dibya Kanti Mukherjee , Joanna Hutchinson , Arijit Kundu

The transport properties of a circular billiard with attached channels, which is an open system, have been studied in the presence of the Dresselhaus and Rashba spin-orbit interactions. It has been shown that this interaction leads to the…

Quantum Physics · Physics 2013-02-04 Alexander Malyshev , Galina Isupova

We investigate the transport properties of narrow quantum wires realized in disordered two-dimensional electron gases in the presence of k-linear Rashba and Dresselhaus spin-orbit interaction (SOI), and an applied in-plane magnetic field.…

Mesoscale and Nanoscale Physics · Physics 2009-05-27 Matthias Scheid , Inanc Adagideli , Junsaku Nitta , Klaus Richter