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The split superconducting transition of up-spin and down-spin electrons on the background of ferromagnetism is studied within the framework of a recent model that describes the coexistence of ferromagnetism and superconductivity induced by…

Superconductivity · Physics 2009-11-10 D. Belitz , T. R. Kirkpatrick

We investigate spin transport through ferromagnetic graphene vertical heterostructures where a sandwiched tunneling layer is either a normal or ferroelectric insulator. We show that the spin-polarization of the tunneling current is…

Mesoscale and Nanoscale Physics · Physics 2016-05-31 Nojoon Myoung , Hee Chul Park , Seung Joo Lee

We study effects of the shape of a two-dimensional waveguide on the spin-dependent electron transport in the presence of spin-orbit coupling. The transition from classical motion to the tunneling regime can be controlled there by modulating…

Mesoscale and Nanoscale Physics · Physics 2012-02-03 Yue Ban , E. Ya. Sherman

An important consequence of the discovery of giant magnetoresistance in metallic magnetic multilayers is a broad interest in spin dependent effects in electronic transport through magnetic nanostructures. An example of such systems are…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Barnas , I. Weymann

Current fluctuations can provide additional insight into quantum transport in mesoscopic systems. The present work is carried out for the fluctuation properties of transport through a pair of coupled quantum dots which are connected with…

Mesoscale and Nanoscale Physics · Physics 2009-09-02 JunYan Luo , Xin-Qi Li , YiJing Yan

The Coulomb interaction between electrons of opposite spin orientations in a metal or in a doped semiconductor results in a negative off-diagonal component of the electrical resistivity matrix -- the so-called "spin-drag resistivity". It is…

Strongly Correlated Electrons · Physics 2009-11-10 G. Vignale

The inversion symmetry breaking at the interface between different materials generates a strong interfacial spin-orbit coupling (ISOC) that may influence the spin and charge transport in hybrid structures. Here we use a simple analytically…

Mesoscale and Nanoscale Physics · Physics 2017-10-04 Juan Borge , Ilya Tokatly

We calculated a spin-polarized conductance in the almost unexplored nanostructure "high temperature ferromagnetic insulator/ graphene/ ferroelectric film" with a special attention to the impact of electric polarization rotation in a…

Materials Science · Physics 2020-09-02 Eugene A. Eliseev , Anna N. Morozovska , Maksym V. Strikha

Spin transport equations in a non-homogeneous ferromagnet are derived in the limit where the sd exchange coupling between the electrons in the conduction band and those in the d band is dominant. It is shown that spin diffusion in…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Benakli , J. Hohlfeld , A. Rebei

Strongly correlated materials are expected to feature unconventional transport properties, such that charge, spin, and heat conduction are potentially independent probes of the dynamics. In contrast to charge transport, the measurement of…

The electron mediated exchange interaction between local spins adsorbed on two-dimensional surface is studied under non-equilibrium conditions. The effective spin-spin interaction is found to depend both on the spin-polarization of the…

Strongly Correlated Electrons · Physics 2010-11-29 J. Fransson

Electron transport in magnetic orders and the magnetic orders dynamics have a mutual dependence, which provides the key mechanisms in spin-dependent phenomena. Recently, antiferromagnetic orders are focused on as the magnetic order, where…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Junji Fujimoto

We study spin transport through a normal metal-spin superconductor junction. A spin-flip reflection is demonstrated at the interface, where a spin-up electron incident from the normal metal can be reflected as a spin-down electron and the…

Superconductivity · Physics 2017-11-20 Peng Lv , Ai-Min Guo , Huaiyu Li , Chunxiao Liu , X. C. Xie , Qing-Feng Sun

We present a numerical study of the density of states in a ferromagnet/superconductor junction and the Josephson current in a superconductor/ferromagnet/superconductor junction in the diffusive limit by solving the Usadel equation with…

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

A theory of the proximity effects of the exchange splitting in a ferromagnetic metal on a two dimensional electron gas (2DEG) in a semiconductor is presented. The resulting spin-dependent energy and lifetime in the 2DEG create a marked…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. P. McGuire , C. Ciuti , L. J. Sham

In ferromagnetic metals, the interconversion of spin and charge currents via the spin Hall effect and its inverse can depend on the angle between the ferromagnets magnetization and the spin current polarization direction. Here, such a…

Materials Science · Physics 2019-03-27 Joel Cramer , Andrew Ross , Samridh Jaiswal , Lorenzo Baldrati , Romain Lebrun , Mathias Kläui

Spin currents can modify the magnetic state of ferromagnetic ultrathin films through spin-orbit torque. They may be generated by means of spin-orbit interaction by either bulk or interfacial phenomena. Electrical transport measurements…

Mesoscale and Nanoscale Physics · Physics 2022-06-27 A. Anadón , R. Guerrero , J. A. Jover-Galtier , A. Gudín , J. M. Díez , P. Olleros-Rodríguez , R. Miranda , J. Camarero , P. Perna

The mutual dependence of spin-dependent conduction and magnetization dynamics of ferromagnets provides the key mechanisms in various spin-dependent phenomena. We compute the response of the conduction electron spins to a spatial and time…

Materials Science · Physics 2009-11-10 S. Zhang , Z. Li

Spatiotemporal spin dynamics under spin-orbit interaction is investigated in a (001) GaAs two-dimensional electron gas using magneto-optical Kerr rotation microscopy. Spin polarized electrons are diffused away from the excited position,…

Mesoscale and Nanoscale Physics · Physics 2021-01-20 Daisuke Iizasa , Asuka Aoki , Takahito Saito , Junsaku Nitta , Gian Salis , Makoto Kohda

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such a control mechanism to the spin-dependent transport in a ballistic quasi one dimensional ring patterned in two…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. Bellucci , P. Onorato