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We study the ground state of $N$ weakly interacting electrons (with $N\le 10$) in a two-dimensional parabolic quantum dot with strong Rashba spin-orbit coupling. Using dimensionless parameters for the Coulomb interaction, $\lambda\lesssim…

Mesoscale and Nanoscale Physics · Physics 2014-09-02 Amin Naseri , Alex Zazunov , Reinhold Egger

In a recent Rapid Communication (Phys. Rev. B {\bf 63}, 121210(R) (2001)), Ha\"usler showed that the interaction between electrons in quantum wires may enhance the persistent spin current arising from Rashba spin-orbital coupling. In this…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Yue Yu

The combined presence of a Rashba and a Zeeman effect in a ballistic one-dimensional conductor generates a spin pseudogap and the possibility to propagate a beam with well defined spin orientation. Without interactions transmission through…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 P. Devillard , A. Crepieux , K. I. Imura , T. Martin

In this review article we describe spin-dependent transport in materials with spin-orbit interaction of Rashba type. We mainly focus on semiconductor heterostructures, topological insulators, graphene and hybrid structures involving…

Mesoscale and Nanoscale Physics · Physics 2015-09-29 Dario Bercioux , Procolo Lucignano

We observed magnetocapacitance oscillations in InAs/GaSb quantum wells separated by a $20$\,nm AlSb middle barrier. By realizing independent ohmic contacts for electrons in InAs and holes in the GaSb layer, we found an out-of-plane…

Mesoscale and Nanoscale Physics · Physics 2024-04-26 A. S. L. Ribeiro , R. Schott , C. Reichl , W. Dietsche , W. Wegscheider

In these lecture notes we study the disordered two-dimensional electron gas in the presence of Rashba spin-orbit coupling, by using the Keldysh non-equilibrium Green function technique. We describe the effects of the spin-orbit coupling in…

Mesoscale and Nanoscale Physics · Physics 2016-11-23 Roberto Raimondi , Cosimo Gorini , Sebastian Tölle

A partially gapped spectrum due to the application of a magnetic field is one of the main probes of Rashba spin-orbit coupling in nanowires. Such a "helical gap" manifests itself in the linear conductance, as well as in dynamic response…

Mesoscale and Nanoscale Physics · Physics 2016-12-21 Christopher Pedder , Tobias Meng , Rakesh P. Tiwari , Thomas L. Schmidt

Exploiting inversion symmetry breaking (ISB) in systems with strong spin-orbit coupling promises control of spin through electric fields - crucial to achieve miniaturization in spintronic devices. Delivering on this promise requires a…

Mesoscale and Nanoscale Physics · Physics 2021-04-14 Chi Ming Yim , Dibyashree Chakraborti , Luke C. Rhodes , Seunghyun Khim , Andrew P. Mackenzie , Peter Wahl

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

An exact solution is derived for the wave function of an electron in a semiconductor quantum wire with spin-orbit interaction and driven by external time dependent harmonic confining potential. The formalism allows analytical expressions…

Quantum Physics · Physics 2015-06-11 T. Cadez , J. H. Jefferson , A. Ramsak

We study the spin Hall effect in the kagom\'{e} lattice with Rashba spin-orbit coupling. The conserved spin Hall conductance $\sigma_{xy}^{s}$ (see text) and its two components, i.e., the conventional term $\sigma_{xy}^{s0}$ and the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Guocai Liu , Ping Zhang , Zhigang Wang , Shu-Shen Li

In this work, we show that a gate electric field, applied in the base of the field-effect devices, leads to inducing spin-orbit interactions (Rashba and linear Dresselhauss) and confines the transport electrons in a two-dimensional electron…

Mesoscale and Nanoscale Physics · Physics 2012-07-03 J. L. Cardoso , H. Hernández-Saldaña

We consider the time evolution of the magnetization in a Rashba spin-orbit-coupled Fermi gas, starting from a fully-polarized initial state. We model the dynamics using a Boltzmann equation, which we solve in the Hartree-Fock approximation.…

Quantum Gases · Physics 2014-03-12 Juraj Radic , Stefan S. Natu , Victor Galitski

Numerical methods are developed in the quantum transport calculations for electron in the waveguides with spin-orbital (Rashba) interaction. The methods are based on a hybrid mode-matching scheme in which the wavefunctions are expressed as…

Computational Physics · Physics 2015-09-08 Hang Xie , Feng Jiang , Wei E. I. Sha

Strong interest has arisen recently on low-dimensional systems with strong spin-orbit interaction due to their peculiar properties of interest for some spintronic applications. Here, the time evolution of the electron spin polarization of a…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 C. Grimaldi

We demonstrate in theory that it is possible to all-electrically manipulate the RKKY interaction in a quasi-one-dimensional electron gas embedded in a semiconductor heterostructure, in the presence of Rashba and Dresselhaus spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2010-09-07 Jia-Ji Zhu , Kai Chang , Ren-Bao Liu , Hai-Qing Lin

We illuminate the superconducting phases in [001]-grown-noncentrosymmetric quantum wells with an anisotropic spin-orbit coupling in the presence of on-site Hubbard interaction. Within the random phase approximation, we investigate the…

Superconductivity · Physics 2019-06-20 Mehdi Biderang , Mohammad-Hossein Zare , Alireza Akbari

We explore the nonreciprocity of spin-wave excitations in the Rashba-Hubbard ferromagnet on a square lattice. Our study reveals that the propagation of spin-wave excitations exhibit non-reciprocal behavior, i.e., spin waves traveling in…

Strongly Correlated Electrons · Physics 2025-11-11 Aastha Jain , Dheeraj Kumar Singh

We present an elaborate and systematic study of the conductance properties of a zigzag bilayer graphene nanoribbon modeled by a Kane-Mele (KM) Hamiltonian. The interplay of the Rashba and the intrinsic spin-orbit couplings with the edge…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 Priyanka Sinha , Saurabh Basu

The continuous progress in fabricating low-dimensional systems with large spin-orbit couplings has reached a point in which nowadays materials may display spin-orbit splitting energies ranging from a few to hundreds of meV. This situation…

Strongly Correlated Electrons · Physics 2015-05-13 C. Grimaldi
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