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We investigate transport properties of junctions between two spin-split superconductors linked by a spin-polarized tunneling barrier. The spin-splitting fields in the superconductors (S) are induced by adjacent ferromagnetic insulating (FI)…

The electrical creation and detection of spin accumulation in ferromagnet/semiconductor Schottky contacts that exhibit highly non-linear and rectifying electrical transport is evaluated. If the spin accumulation in the semiconductor is…

Mesoscale and Nanoscale Physics · Physics 2015-09-02 R. Jansen , A. Spiesser , H. Saito , S. Yuasa

We investigate a mesoscopic spin current for strongly interacting Fermi gases through a quantum point contact. Under the situation where spin polarizations in left and right reservoirs are same in magnitude but opposite in sign, we…

Quantum Gases · Physics 2020-05-13 Yuta Sekino , Hiroyuki Tajima , Shun Uchino

Within the scheme of quantum rate equations, we investigate the spin-resolved transport through a double quantum dot system with four ferromagnetic terminals. It is found that the injection efficiency of spin-polarized electrons can be…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Ling Qin , Hai-Feng Lu , Yong Guo

We consider electronic current transport through a ballistic one-dimensional quantum wire connected to two ferromagnetic leads. We study the effects of the spin-dependence of interfacial phase shifts (SDIPS) acquired by electrons upon…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Cottet , T. Kontos , W. Belzig , C. Schonenberger , C. Bruder

We use quantum Monte Carlo to determine the magnetic and transport properties of coupled square lattice spin and fermionic planes as a model for a metal-insulator interface. Specifically, layers of Ising spins with an intra-layer exchange…

Strongly Correlated Electrons · Physics 2015-07-17 R. Mondaini , T. Paiva , R. T. Scalettar

Nonequilibrium electron spin polarization is calculated under spin injection from one ferromagnet to another in magnetic junction. It is shown that the nonequilibrium spin polarization can be comparable with equilibrium one if the material…

Materials Science · Physics 2007-05-23 E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman , A. I. Krikunov

We report on nonlocal spin transport in mesoscopic superconducting aluminum wires in contact with the ferromagnetic insulator europium sulfide. We find spin injection and long-range spin transport in the regime of the exchange splitting…

Superconductivity · Physics 2014-10-17 M. J. Wolf , C. Sürgers , G. Fischer , D. Beckmann

We show that the injection of a pure spin current (not accompanied by charge current) into a ring can induce a circulating charge current in the ring, provided that transport coefficients of the ring are spin-dependent and inhomogeneous. As…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Soon-Wook Jung , Hyun-Woo Lee

Effects due to the proximity of a superconductor has motivated a lot of research work in the last several decades both from theoretical and experimental point of view. In this review we are going to describe the physics of systems…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Arijit Saha

It was proposed recently by Murakami et al. [Science \textbf{301}, 1348(2003)] that in a large class of $p$-doped semiconductors, an applied electric field can drive a quantum dissipationless spin current in the direction perpendicular to…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Liangbin Hu , Ju Gao , Shun-Qing Shen

In this paper, we discuss spin transport in topological insulator (TI) and diluted magnetic semiconductor (DMS) heterogeneous structures. In DMS / FM (Ferromagnetic Metal) heterogeneous structure, the spin injection efficiency changes…

Mesoscale and Nanoscale Physics · Physics 2020-11-30 Myong Chol Pak , Kwang-Il Kim , Hak Chol Pak , Chol Won Ri , Sang Jun Cha

In the spin energy excitation mode of normal metals and superconductors, spin up and down electrons (or quasiparticles) carry different heat currents. This mode occurs only when spin up and down energy distribution functions are…

Mesoscale and Nanoscale Physics · Physics 2020-01-14 M. Kuzmanović , B. Y. Wu , M. Weideneder , C. H. L. Quay , M. Aprili

We analyze the broad range of spin-dependent nonequilibrium transport properties of hybrid systems composed of a normal region tunnel coupled to two superconductors with exchange fields induced by the proximity to thin ferromagnetic layers…

Mesoscale and Nanoscale Physics · Physics 2007-11-21 F. Giazotto , F. Taddei , P. D'Amico , Rosario Fazio , F. Beltram

We review the recent progress in understanding the properties of spin-split superconductors under non-equilibrium conditions. Recent experiments and theories demonstrate a rich variety of transport phenomena occurring in devices based on…

Superconductivity · Physics 2019-02-01 F. Sebastian Bergeret , Mikhail Silaev , Pauli Virtanen , Tero T. Heikkila

Itinerant spin polaron and metallic ferromagnetism are theoretically predicted in the Mott insulator in semiconductor moir\'e superlattices doped below and above half filling of the narrow moir\'e band, respectively. The existence of spin…

Strongly Correlated Electrons · Physics 2023-07-05 Margarita Davydova , Yang Zhang , Liang Fu

We experimentally compare two types of interface structures with magnetic and non-magnetic Weyl semimetals. They are the junctions between a gold normal layer and magnetic Weyl semimetal Ti$_2$MnAl, and a ferromagnetic nickel layer and…

Mesoscale and Nanoscale Physics · Physics 2020-04-28 V. D. Esin , D. N. Borisenko , N. N. Kolesnikov , E. V. Deviatov

We studied electrical transport in magnetic semiconductors, which is determined by scattering of free carriers off localized magnetic moments. We calculated the scattering time and the mobility of the majority and minority-spin carriers…

Materials Science · Physics 2007-05-23 M. Foygel A. G. Petukhov

We study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. V. Fistul , K. B. Efetov

We develop a theory of non-linear growth direction transport in magnetically doped II-VI compound semiconductor multiple-quantum-well systems. We find that the formation of electric field domains can be controlled by manipulating the space…

Condensed Matter · Physics 2016-08-31 David Sanchez , A. H. MacDonald , Gloria Platero
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