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Related papers: Spin-orbit coupling in wurtzite quantum wells

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A systematic numerical investigation of spin-orbit fields in the conduction bands of III-V semiconductor nanowires is performed. Zinc-blende InSb nanowires are considered along [001], [011], and [111] directions, while wurtzite InAs…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 Tiago Campos , Paulo E. Faria Junior , Martin Gmitra , Guilherme M. Sipahi , Jaroslav Fabian

We study theoretically the ultrafast spin dynamics of II-VI diluted magnetic quantum wells in the presence of spin-orbit interaction. We extend a recent study where it was shown that the spin-orbit interaction and the exchange sd coupling…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Florian Ungar , Moritz Cygorek , Pablo I. Tamborenea , V. Martin Axt

Dynamic response of two-dimensional electron systems with spin-orbit interaction is studied theoretically on the basis of quantum kinetic equation, taking into account elastic scattering of electrons. The spin polarization and spin current…

Mesoscale and Nanoscale Physics · Physics 2007-06-19 O. E. Raichev

The Rashba Hamiltonian describes the splitting of the conduction band as a result of spin-orbit coupling in the presence of an asymmetric confinement potential and is commonly used to model the electronic structure of confined narrow-gap…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Jun-ichiro Inoue , Gerrit E. W. Bauer , Laurens W. Molenkamp

We present an analytical solution to the Schr\"odinger equation for electron in a two-dimensional circular quantum dot in the presence of both external magnetic field and the Rashba spin-orbit interaction. The confinement is described by…

Mathematical Physics · Physics 2009-11-19 V. V. Kudryashov

Starting from the symmetry aspects and tight-binding method in combination with first-principles calculation, we systematically derive the low-energy effective Hamiltonian involving spin-orbit coupling (SOC) for silicene, which is very…

Materials Science · Physics 2011-11-23 Cheng-Cheng Liu , Hua Jiang , Yugui Yao

We study theoretically the ultrafast spin dynamics of II-VI diluted magnetic semiconductors in the presence of spin-orbit interaction. Our goal is to explore the interplay or competition between the exchange $sd$-coupling and the spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Florian Ungar , Moritz Cygorek , Pablo I. Tamborenea , Vollrath Martin Axt

We study supersolid-like states in a quasi-two-dimensional trapped Rashba and Dresselhaus spin-orbit (SO) coupled spin-1 condensate. For small strengths of SO coupling $\gamma$ ($\gamma \lessapprox 0.75$), in the ferromagnetic phase,…

Quantum Gases · Physics 2021-05-26 S. K. Adhikari

We develop the microscopic theory of electron spin dephasing in (110)-grown quantum wells where the electron scattering time is comparable to or exceeds the period of spin precession in the effective magnetic field caused by spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2015-06-15 A. V. Poshakinskiy , S. A. Tarasenko

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

2+1 dimensional topological insulator described by the Kane-Mele model in the presence of Rashba spin-orbit interaction is considered. The effective action of the external fields coupled to electromagnetic and spin degrees of freedom is…

Mesoscale and Nanoscale Physics · Physics 2013-10-15 Omer F. Dayi , Mahmut Elbistan

We present a self-consistent theory to calculate the static and uniform spin susceptibility in superconductors under simultaneous Zeeman magnetic fields and Rashba-type spin-orbit coupling (SOC). Employing a single-band Bogoliubov-de Gennes…

Superconductivity · Physics 2026-02-25 Chen Pang , Yi Zhou

It was recently shown that a spatially modulated Rashba spin-orbit coupling in a quantum wire drives a transition from a metallic to an insulating state when the wave number of the modulation becomes commensurate with the Fermi wave length…

Strongly Correlated Electrons · Physics 2011-09-02 Mariana Malard , Inna Grusha , G. I. Japaridze , Henrik Johannesson

We present magnetotransport calculations for homogeneous two-dimensional electron systems including the Rashba spin-orbit interaction, which mixes the spin-eigenstates and leads to a modified fan-chart with crossing Landau levels. The…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 M. Langenbuch , M. Suhrke , U. Rössler

We investigate the existence of linear-in-momentum spin-orbit interactions in the valence band of Ge/GeSi heterostructures using an atomistic tight-binding method. We show that symmetry breaking at the Ge/GeSi interfaces gives rise to a…

Transition metal compounds with the $(t_{2g})^4$ electronic configuration are expected to be nonmagnetic atomic singlets both in the weakly interacting regime due to spin-orbit coupling, as well as in the Coulomb dominated regime with…

Strongly Correlated Electrons · Physics 2017-01-16 Christopher Svoboda , Mohit Randeria , Nandini Trivedi

We analyze the proper inclusion of electric-field-induced spin splittings in the framework of the envelope function approximation. We argue that the Rashba effect should be included in the form of a macroscopic potential as diagonal terms…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 U. Ekenberg , D. M. Gvozdic

We study spin relaxation and decoherence in a GaAs quantum dot due to spin-orbit interaction. We derive an effective Hamiltonian which couples the electron spin to phonons or any other fluctuation of the dot potential. We show that the spin…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Vitaly N. Golovach , Alexander Khaetskii , Daniel Loss

Spin transport was studied in a two-dimensional electron gas hosted in a wide GaAs quantum well occupying two subbands. Using space and time Kerr rotation microscopy to image drifting spin packets under an in-plane accelerating electric…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 N. M . Kawahala , F. C. D. Moraes , G. M. Gusev , A. K. Bakarov , F. G. G. Hernandez

We investigate the influence of spin-orbit coupling $\lambda$ in strongly-correlated multiorbital systems that we describe by a three-orbital Hubbard-Kanamori model on a Bethe lattice. We solve the problem at all integer fillings $N$ with…

Strongly Correlated Electrons · Physics 2018-11-30 Robert Triebl , Gernot J. Kraberger , Jernej Mravlje , Markus Aichhorn
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