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Recent experiments in semiconductor nanowires with a spin-orbit coupling and proximity-induced superconductivity exhibit signatures of Majorana bound states predicted to exist in the topological phase. In this work we predict that these…

Mesoscale and Nanoscale Physics · Physics 2012-12-11 Teemu Ojanen

We argue that the formation of Yu-Shiba-Rusinov excitations in proximitized thin films is largely mediated by a type of Andreev-bound state named after de Gennes and Saint James. This is shown by studying an experimentally motivated model…

Superconductivity · Physics 2023-08-09 Jon Ortuzar , Jose Ignacio Pascual , F. Sebastian Bergeret , Miguel A. Cazalilla

We study one dimensional quasiperiodic system obtained from the tight-binding model on the square lattice in a uniform magnetic field with the spin orbit interaction. The phase diagram with respect to the Harper coupling and the Rashba…

Statistical Mechanics · Physics 2008-10-21 Mahito Kohmoto , Daijiro Tobe

We investigate theoretically how the proximity effect in superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling manifests in the density of states and critical temperature. To describe a general scenario, we allow…

Superconductivity · Physics 2015-08-04 Sol H. Jacobsen , Jabir Ali Ouassou , Jacob Linder

We analyze the phase diagram associated with a pair of magnetic impurities trapped in a superconducting host. The natural interplay between Kondo screening, superconductivity and exchange interactions leads to a rich array of competing…

Superconductivity · Physics 2014-12-15 N. Y. Yao , C. P. Moca , I. Weymann , J. D. Sau , M. D. Lukin , E. A. Demler , G. Zaránd

We present a theoretical study of diluted magnetic semiconductors that treats the local sp-d exchange interaction J between the itinerant carriers and the Mn d electrons within a realistic band structure and goes beyond previous mean-field…

Materials Science · Physics 2007-05-23 Byounghak Lee , Xavier Cartoixa , Nandini Trivedi , Richard M. Martin

We study analytically and numerically spin effects in MoS_2 monolayer armchair quantum wires and quantum dots. The interplay between intrinsic and Rashba spin orbit interactions induced by an electric field leads to helical modes, giving…

Mesoscale and Nanoscale Physics · Physics 2013-08-07 Jelena Klinovaja , Daniel Loss

We investigate the formation and transport properties of chiral Andreev edge states in a two-dimensional quantum Hall system proximitized by a superconductor. By numerically modeling the system using the Bogoliubov-de Gennes equations, we…

Mesoscale and Nanoscale Physics · Physics 2026-05-19 S. Maji , M. P. Nowak

The superconducting diode effect is an asymmetry in the critical current with respect to the supercurrent polarity. One impetus driving recent interest in the effect is its dependence on intrinsic or microscopic symmetry breaking…

A common path to superconducting spintronics, Majorana fermions, and topologically-protected quantum computing relies on spin-triplet superconductivity. While naturally occurring spin-triplet pairing is elusive and even common spin-triplet…

Superconductivity · Physics 2020-02-05 Thomas Vezin , Chenghao Shen , Jong E. Han , Igor Žutić

Current-induced spin polarization in a two-dimensional electron gas with Rashba spin-orbit interaction is considered theoretically in terms of the Matsubara Green functions. This formalism allows to describe temperature dependence of the…

Mesoscale and Nanoscale Physics · Physics 2017-06-14 A. Dyrdal , J. Barnas , V. K. Dugaev

We consider magnetic impurities in a two dimensional superfluid Fermi gas in the presence of spin-orbit coupling. By using the methods of t-matrix and Green's function, we find spin-orbit coupling has some dramatic impacts on the effects of…

Quantum Gases · Physics 2013-01-07 Zhongbo Yan , Xiaosen Yang , Liang Sun , Shaolong Wan

The conventional unpolarized current injected into a {\em quantum-coherent} semiconductor ring attached to two external leads can be modulated from perfect conductor to perfect insulator limit via Rashba spin-orbit (SO) coupling. This…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Satofumi Souma , Branislav K. Nikolic

Motivated by recent experiments [Nat. Phys. $\textbf{16}$, 1227 (2020)], we present here a theoretical study of the DC Josephson effect in a system comprising two magnetic impurities coupled to their respective superconducting electrodes…

We consider a general problem of a Josephson contact between two multiband superconductors with coexisting superconducting and magnetic phases. As a particular example, we use the quasiclassical theory of superconductivity to study the…

Strongly Correlated Electrons · Physics 2020-01-01 Ammar A. Kirmani , Maxim Dzero , Alex Levchenko

Disorder scattering and spin-orbit coupling are together responsible for the diffusion and relaxation of spin-density in time-reversal invariant systems. We study spin-relaxation and diffusion in a two-dimensional electron gas with Rashba…

Mesoscale and Nanoscale Physics · Physics 2014-09-24 Yasufumi Araki , Guru Khalsa , Allan H. MacDonald

We study the Kondo screening of a magnetic impurity in a two-dimensional superconductor with Rashba spin-orbit coupling (SOC). It is found that the Rashba interaction generates a novel Kondo screening channel, in which the local moment is…

Strongly Correlated Electrons · Physics 2018-03-13 Lin Li , Ming-Xin Gao , Zhen-Hua Wang , Hong-Gang Luo , Wei-Qiang Chen

We show that superconducting currents are generated around magnetic impurities and ferromagnetic islands proximity-coupled to superconductors with finite spin-orbit coupling. Using the Ginzburg-Landau theory, T-matrix calculation, as well…

Strongly Correlated Electrons · Physics 2015-09-29 Sergey S. Pershoguba , Kristofer Björnson , Annica M. Black-Schaffer , Alexander V. Balatsky

We investigate the spin-Hall effect in a two-dimensional heavy-hole system with Rashba spin-orbit coupling using a nonequilibrium Green's function approach. Both the short- and long-range disorder scatterings are considered in the…

Materials Science · Physics 2009-11-11 S. Y. Liu , X. L. Lei

We present a theoretical description and numerical simulations of the superconducting transition in hybrid structures including strong spin-orbit interactions. The spin-orbit coupling is taken to be of Rashba type for concreteness, and we…

Superconductivity · Physics 2018-03-07 Haakon T. Simensen , Jacob Linder