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We measure electrically detected ferromagnetic resonance in microdevices patterned from ultra-thin Co/Pt bilayers. Spin pumping and rectification voltages are observed and distinguished via their angular dependence. The spin-pumping voltage…

Mesoscale and Nanoscale Physics · Physics 2013-04-22 T. D. Skinner , H. Kurebayashi , D. Fang , D. Heiss , A. C. Irvine , A. T. Hindmarch , M. Wang , A. W. Rushforth , A. J. Ferguson

Spin Hall effect provides an efficient tool for the conversion of a charge current into a spin current, opening the possibility of producing pure spin currents in non-magnetic materials for the next generation of spintronics devices. In…

This paper is concerned with a theoretical analysis of the behavior of optically excited spin currents in bilayer and multilayer systems of ferromagnetic and normal metals. As the propagation, control and manipulation of the spin currents…

Mesoscale and Nanoscale Physics · Physics 2023-08-16 J. Briones , M. Weber , B. Stadtmüller , H. C. Schneider , B. Rethfeld

In metallic ferromagnets, an electric current is accompanied by a flux of angula r momentum, also called spin current. In multilayers, spatial variations of the spin current correspond to drive torques exerted on a magnetic layer. These…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 L. Berger

Spin-orbit coupling in magnetic systems lacking inversion symmetry can give rise to non trivial spin textures. Magnetic thin films and heterostructures are potential candidates for the formation of skyrmions and other non-collinear spin…

Strongly Correlated Electrons · Physics 2018-10-29 S. Valencia , M. J. Calderón , L. López-Mir , Z. Kostantinovic , E. Schierle , E. Weschke , L. Brey , B. Martínez , Ll. Balcells

We present a theory of the spin Hall magnetoresistance of metals in contact with magnetic insulators. We express the spin-mixing conductances, which govern the phenomenology of the effect, in terms of the microscopic parameters of the…

Mesoscale and Nanoscale Physics · Physics 2019-10-02 X. P. Zhang , F. S. Bergeret , V. N. Golovach

We have considered the effect of different spin-orbit interaction mechanisms on the process of demagnetization under the influence of short-pulse lasers. All-optical magnetization reversal of perpendicularly magnetized thin films can occur…

Mesoscale and Nanoscale Physics · Physics 2016-07-18 Mehrdad Elyasi , Hyunsoo Yang

In spin torque magnetic memories, electrically actuated spin currents are used to switch a magnetic bit. Typically, these require a multilayer geometry including both a free ferromagnetic layer and a second layer providing spin injection.…

The spin-to-charge current interconversion in bilayers composed of ferromagnetic and nonmagnetic layers with strong spin-orbit coupling has garnered considerable attention due to its exceptional potential in advancing spintronics devices…

We present a consistent microscopic study of spin pumping effects for both metallic and insulating ferromagnets. As for metallic case, we present a simple quantum mechanical picture of the effect as due to the electron spin flip as a result…

Mesoscale and Nanoscale Physics · Physics 2017-08-22 Gen Tatara , Shigemi Mizukami

Planar spin transport in disordered ultrathin magnetic bilayers comprising a ferromagnet and a normal metal (typically used for spin pumping, spin Seebeck and spin-orbit torque experiments) is investigated theoretically. Using a…

Mesoscale and Nanoscale Physics · Physics 2016-08-03 H. Saidaoui , A. Manchon

Spin transport phenomena underpin an extensive range of spintronic effects. In particular spin transport across interfaces occurs in most device concepts, but is so far poorly understood. As interface properties strongly impact spin…

Materials Science · Physics 2021-05-19 Alexander Pfeiffer , Robert M. Reeve , Kelvin Elphick , Atsufumi Hirohata , Mathias Kläui

Current induced spin-orbit magnetic fields (iSOFs), arising either in single-crystalline ferromagnets with broken inversion symmetry1,2 or in non-magnetic metal/ferromagnetic metal bilayers3,4, can produce spin-orbit torques which act on a…

Mesoscale and Nanoscale Physics · Physics 2018-04-27 L. Chen , M. Gmitra , M. Vogel , R. Islinger , M. Kronseder , D. Schuh , D. Bougeard , J. Fabian , D. Weiss , C. H. Back

We investigate the spin-transfer torque in a magnetic multilayer structure by means of a spin-diffusion model. The torque in the considered system, consisting of two magnetic layers separated by a conducting layer, is caused by a…

Spintronics in ferromagnetic metals is built on a complementary set of phenomena in which magnetic configurations influence transport coefficients and transport currents alter magnetic configurations. In this Letter we propose that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. S. Nunez , R. A. Duine , A. H. MacDonald

In a magnetic multilayer, magnetizations can be manipulated by spin transfer torque. Both spin transfer torque and its reciprocal effect, spin pumping, are governed by spin mixing conductance. The magnitude of spin mixing conductance at the…

Mesoscale and Nanoscale Physics · Physics 2021-12-15 Adam B. Cahaya , Muhammad Aziz Majidi

We use a combination of analytic calculations and numerical simulations to demonstrate that electrical current flowing through a magnetic bilayer induces dynamical coupling between the layers. The coupling originates from the dependence of…

Materials Science · Physics 2008-02-13 S. Urazhdin

The spin-orbit interaction in a solid couples the spin of an electron to its momentum. This coupling gives rise to mutual conversion between spin and charge currents: the direct and inverse spin Hall effects. The spin Hall effects have been…

Materials Science · Physics 2015-05-28 Kazuya Ando , Eiji Saitoh

Silicon's weak intrinsic spin-orbit coupling and centrosymmetric crystal structure are a critical bottleneck to the development of Si spintronics, because they lead to an insignificant spin-Hall effect (spin current generation) and inverse…

Mesoscale and Nanoscale Physics · Physics 2020-04-03 Paul C. Lou , Anand Katailiha , Ravindra G. Bhardwaj , Tonmoy Bhowmick , W. P. Beyermann , Roger K. Lake , Sandeep Kumar

We report on the combination of current-induced spin-orbit torques and giant magnetoresistance in a single device to achieve all-electrical write and read out of the magnetization. The device consists of perpendicularly magnetized TbCo and…

Mesoscale and Nanoscale Physics · Physics 2021-08-13 Can Onur Avci , Charles-Henri Lambert , Giacomo Sala , Pietro Gambardella