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We present a theory of magnetic response in a finite-size two-dimensional superconductors with Rashba spin-orbit coupling. The interplay between the latter and an in-plane Zeeman field leads on the one hand to an out-of-plane spin…

Superconductivity · Physics 2021-01-20 F. Sebastián Bergeret , Ilya V. Tokatly

The interplay between superconductivity, spin-orbit coupling, and Zeeman or exchange field, is studied theoretically in two different setups: a single wire in which all these fields coexist, and a double wire system in which superconducting…

Superconductivity · Physics 2020-05-20 J. Baumard , J. Cayssol , A. Buzdin , F. S. Bergeret

We study theoretically the onset of nonuniform superconductivity in a one-dimensional single wire in presence of Zeeman (or exchange field) and spin-orbit coupling. Using the Green's function formalism, we show that the spin-orbit coupling…

Superconductivity · Physics 2020-07-14 J. Baumard , J. Cayssol , A. Buzdin

We study the edge spin current and spin polarization in a two-dimensional electron gas with spin-orbit coupling in the presence of a perpendicular magnetic field. The edge effect removes the degeneracy of Landau levels due to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Yun-Juan Bao , Huai-Bing Zhuang , Shun-Qing Shen , Fu-Chun Zhang

We analyze the contribution of the inhomogeneous magnetic field induced by an electrical current to the spin Hall effect in metals. The Zeeman coupling between the field and the electron spin leads to a spin dependent force, and to spin…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 A. Hernando , F. Guinea , M. A. Garcia

We consider a thin-film normal metal/superconductor junction in the presence of an externally applied in-plane magnetic field for several symmetries of the superconducting order parameter. For p-wave superconductors, a strongly…

Superconductivity · Physics 2009-11-13 Jacob Linder , Takehito Yokoyama , Yukio Tanaka , Asle Sudbø

We study the spin and charge accumulation in junctions between a superconductor and a ferromagnet or a normal metal in the presence of a Zeeman magnetic field, when the junction is taken out of equilibrium by applying a voltage bias. We…

Mesoscale and Nanoscale Physics · Physics 2018-01-18 D. Chevallier , M. Trif , C. Dutreix , M. Guigou , C. H. L. Quay , M. Aprili , C. Bena

We present analysis of the interacting quantum wire problem in the presence of magnetic field and spin-orbit interaction. We show that an interesting interplay of Zeeman and spin-orbit terms, facilitated by the electron-electron…

Strongly Correlated Electrons · Physics 2007-05-23 Jianmin Sun , Suhas Gangadharaiah , Oleg A. Starykh

We consider DC supercurrents in SNS junctions. Spin-orbit coupling in combination with Zeeman fields can induce an effective vector potential in the normal conductor. As a consequence, an out-of-plane spin-density varying along the…

Superconductivity · Physics 2009-09-09 A. G. Mal'shukov , Severin Sadjina , Arne Brataas

We study theoretically the simultaneous influence of spin accumulation potential $eV_\uparrow-eV_\downarrow$ and the Zeeman exchange field on singlet superconductivity. It is shown that the pair-breaking effect of the Zeeman field can be…

Superconductivity · Physics 2015-05-28 I. V. Bobkova , A. M. Bobkov

We report on an experimental investigation of the combined effect of nonequilibrium quasiparticle injection and supercurrent in superconducting aluminum wires. At low temperature, we observe the supercurrent-induced coupling of energy and…

Superconductivity · Physics 2023-02-22 P. Maier , D. Beckmann

We show that the spin-orbit interaction induced by the boundary confining potential causes opposite spin accumulations on the transverse edges in a zonal two-dimensional electron gas in the presence of external longitudinal electric field.…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yanxia Xing , Qing-feng Sun , Liang Tang , JiangPing Hu

Spin-polarized transport is investigated in normal metal-superconductor (NS) junctions as a function of interface transmissivity as well as temperature when the density of states of a superconductor is Zeeman-split in response to an…

Mesoscale and Nanoscale Physics · Physics 2008-04-03 F. Giazotto , F. Taddei

Resonant behavior involving spin-orbit entangled states occurs for spin transport along a narrow channel defined in a two-dimensional electron gas, including an apparent rapid relaxation of the spin polarization for special values of the…

Mesoscale and Nanoscale Physics · Physics 2014-04-02 D. H. Berman , M. Khodas , M. E. Flatté

We describe the far from equilibrium non-local transport in a diffusive superconducting wire with a Zeeman splitting, taking into account the different spin relaxation mechanisms. We demonstrate that due to the Zeeman splitting an injection…

Superconductivity · Physics 2015-05-20 M. Silaev , P. Virtanen , F. S. Bergeret , T. T. Heikkilä

A magnetic adatom chain, proximity coupled to a conventional superconductor with spin-orbit coupling, exhibits locally an odd-parity, spin-triplet pairing amplitude. We show that the singlet-triplet junction, thus formed, leads to a net…

Superconductivity · Physics 2018-06-15 Narayan Mohanta , Arno P. Kampf , Thilo Kopp

A useful experimental signature of the ordinary spin Hall effect is the spin accumulation it produces at the sample edges. The superspin Hall current [Phys. Rev. B 96, 094512 (2017)] is a transverse equilibrium spin current which is induced…

Superconductivity · Physics 2019-05-15 Vetle Risinggård , Jacob Linder

Because of the peculiar coupling of spatial and spin degrees of freedom effected by the Rashba spin-orbit interaction, lateral confinement of a two dimensional electronic system leads to a finite transverse spin polarization near the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. Chesi , G. F. Giuliani

The spin-orbit coupling systems with a zero magnetic field is studied under the equilibrium situation, {\it i.e.}, without a voltage bias. A persistent spin current is predicted to exist under most circumstances, although the persistent…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Qing-feng Sun , X. C. Xie

Andreev reflection in ferromagnet-superconductor junctions is derived in a regime in which Zeeman splitting dominates the response of the superconductor to an applied magnetic field. Spin-up and spin-down Andreev reflections are shown to be…

Superconductivity · Physics 2009-10-31 R. Mélin
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