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We demonstrate that spin-orbit coupling (SOC) strength for electrons near the conduction band edge in few-layer $\gamma$-InSe films can be tuned over a wide range. This tunability is the result of a competition between…

We use temporally resolved intensity cross-correlation measurements to identify the biexciton-exciton radiative cascades in a negatively charged QD. The polarization sensitive correlation measurements show unambiguously that the excited two…

Mesoscale and Nanoscale Physics · Physics 2014-02-11 Y. Benny , R. Presman , Y. Kodriano , E. Poem , D. Gershoni , T. A. Truong , P. M. Petroff

A realistic pseudopotential model is introduced to investigate the phonon-induced spin relaxation of conduction electrons in bulk silicon. We find a surprisingly subtle interference of the Elliott and Yafet processes affecting the spin…

Materials Science · Physics 2010-01-05 J. L. Cheng , M. W. Wu , J. Fabian

We determine the spin exchange coupling J between two electrons located in two vertically tunnel-coupled quantum dots, and its variation when magnetic (B) and electric (E) fields (both in-plane and perpendicular) are applied. We predict a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Guido Burkard , Georg Seelig , Daniel Loss

Supposing the spin-triplet superconducting state of Sr$_2$RuO$_4$, the spin-orbit (SO) coupling associated with relative motion in Cooper pairs is calculated by extending the method for the dipole-dipole coupling given by Leggett in the…

Superconductivity · Physics 2015-05-18 K. Miyake

The odd-parity spin-triplet Cooper pairing states show a six-fold degeneracy for a quasi-two-dimensional electron system. In this article we show how spin-orbit coupling can lift this degeneracy for Sr_2RuO_4 taking the band structure based…

Superconductivity · Physics 2009-10-31 Kwai-Kong Ng , Manfred Sigrist

In monolayer transition metal dichalcogenides (TMDs), electrons in opposite $K$ valleys are subject to opposite effective Zeeman fields, which are referred to as Ising spin-orbit coupling (SOC) fields. The Ising SOC, originated from…

Superconductivity · Physics 2016-05-11 Benjamin T. Zhou , Noah F. Q. Yuan , Hong-Liang Jiang , K. T. Law

We investigate the spin-orbit coupling (SOC) effects in $\alpha$- and $\kappa$-phase BEDT-TTF and BEDT-TSF organic salts. Contrary to the assumption that SOC in organics is negligible due to light C, S, H atoms, we show the relevance of…

Strongly Correlated Electrons · Physics 2017-02-15 Stephen M. Winter , Kira Riedl , Roser Valenti

We consider spin dynamics in the impurity band of a semiconductor with spin-split spectrum. Due to the splitting, phonon-assisted hops from one impurity to another are accompanied by rotation of the electron spin, which leads to spin…

Disordered Systems and Neural Networks · Physics 2015-06-25 I. S. Lyubinskiy , A. P. Dmitriev , V. Yu. Kachorovskii

We study spin-orbital coupling effect on the Josephson current through a superconductor (SC) heterojunction, consisting of two s-wave superconductors and a two-dimensional electron gas (2DEG) layer between them. The Rashba-type (RSOC)…

Superconductivity · Physics 2009-11-13 Z. H. Yang , Y. H. Yang , J. Wang , K. S. Chan

We consider theoretically the relaxation of electron spin component parallel to the growth direction in multiple (110) GaAs quantum wells. The sources of spin relaxation are the random Rashba spin-orbit coupling due to the electric field of…

Mesoscale and Nanoscale Physics · Physics 2010-05-10 M. M. Glazov , M. A. Semina , E. Ya. Sherman

Silicon quantum dots are a leading approach for solid-state quantum bits. However, developing this technology is complicated by the multi-valley nature of silicon. Here we observe transport of individual electrons in a silicon CMOS-based…

Mesoscale and Nanoscale Physics · Physics 2014-08-05 Xiaojie Hao , Rusko Ruskov , Ming Xiao , Charles Tahan , HongWen Jiang

An inhomogeneous magnetic exchange field at a superconductor/ferromagnet interface converts spin-singlet Cooper pairs to a spin-aligned (i.e. spin-polarized) triplet state. Although the decay envelope of such triplet pairs within…

The spin-orbit coupling (SOC) interactions, electron correlation effects and Hund coupling cooperate and compete with each other, leading to novel properties, quantum phase and non-trivial topological electronic behavior in iridium oxides.…

Strongly Correlated Electrons · Physics 2018-12-19 Xing Ming , Xiangang Wan , Carmine Autieri , Jianfeng Wen , Xiaojun Zheng

We show that the parallel magnetic field-induced increase in the critical electron density for the Anderson transition in a strongly interacting two-dimensional electron system is caused by the effects of exchange and correlations. If the…

Strongly Correlated Electrons · Physics 2017-08-21 V. T. Dolgopolov , A. A. Shashkin , S. V. Kravchenko

The transport of quantum information between different nodes of a quantum device is among the challenging functionalities of a quantum processor. In the context of spin qubits, this requirement can be met by coherent electron spin shuttling…

Mesoscale and Nanoscale Physics · Physics 2024-11-28 Florian Ginzel , Adam R. Mills , Jason R. Petta , Guido Burkard

The flip-flop qubit, encoded in the states with antiparallel donor-bound electron and donor nuclear spins in silicon, showcases long coherence times, good controllability, and, in contrast to other donor-spin-based schemes, long-distance…

Quantum Physics · Physics 2022-10-12 Fernando A. Calderon-Vargas , Edwin Barnes , Sophia E. Economou

We explore possible superconducting states in $t_{2g}$ multi-orbital correlated electron systems with strong spin-orbit coupling (SOC). In order to study such systems in a controlled manner, we employ large-scale dynamical mean-field theory…

Strongly Correlated Electrons · Physics 2014-10-24 Zi Yang Meng , Yong Baek Kim , Hae-Young Kee

We propose an experiment, which would allow to pinpoint the role of spin-orbit coupling in the metal-nonmetal transition observed in a number of two-dimensional systems at low densities. Namely, we demonstrate that in a parallel magnetic…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Guang-Hong Chen , M. E. Raikh , Yong-Shi Wu

We report a first principles computational analysis of two phonon-mediated superconductors, In$_{5}$Bi$_{3}$ and In$_{5}$Sb$_{3}$. We show that spin-orbit coupling leads to splitting of electron bands around the Fermi energy, resulting in a…

Superconductivity · Physics 2024-10-29 Yao Wei , Siyu Chen , Bartomeu Monserrat