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The generation of photocurrent in condensed matter is of main interest for photovoltaic and optoelectronic applications. Shift current, a nonlinear photoresponse, has attracted recent intensive attention as a dominant player of bulk…

Mesoscale and Nanoscale Physics · Physics 2017-02-01 Kun Woo Kim , Takahiro Morimoto , Naoto Nagaosa

We theoretically investigate spin transport in a junction system composed of a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) with both Rashba and Dresselhaus spin-orbit interactions. We briefly present our findings…

Mesoscale and Nanoscale Physics · Physics 2024-11-12 Masaki Yama , Mamoru Matsuo , Takeo Kato

Locking of the spin of a quasi-particle to its momentum in split bands of on the surfaces of metals and topological insulators (TIs) is understood in terms of Rashba effect where a free electron in the surface states feels an effective…

By using first-principles plane wave calculations, we systematically study the electronic properties of the thin film of antimony in (111) orientation. Considering the spin-orbit interaction, for stoichiometric surface, the topological…

Materials Science · Physics 2012-01-11 Shuang-Xi Wang , Ping Zhang , Shu-Shen Li

We describe excitation of dipole-exchange spin waves in insulating magnetic thin films by spin current injection at the surface of the film. An easy-axis magnetic surface anisotropy can induce a non-chiral surface spin wave mode with…

Materials Science · Physics 2013-05-10 Jiang Xiao , Yan Zhou , Gerrit E. W. Bauer

The field-effect technique, popular thanks to its application in common field-effect transistors, is here applied to metallic thin films by using as a dielectric a novel polymer electrolyte solution. The maximum injected surface charge,…

Mesoscale and Nanoscale Physics · Physics 2013-12-10 M. Tortello , A. Sola , Kanudha Sharda , F. Paolucci , J. R. Nair , C. Gerbaldi , D. Daghero , R. S. Gonnelli

Interfacial spin to charge conversion arises due to an electric potential perpendicular to the interface. The electric potential can be artificially induced, for example, using ferroelectric and piezoelectric thin films at the interface. An…

Mesoscale and Nanoscale Physics · Physics 2020-06-23 Ravindra G Bhardwaj , Anand Katailiha , Paul C. Lou , W. P. Beyermann , Sandeep Kumar

The spin pumping efficiency of lateral standing spin wave modes in a rectangular YIG/Pt sample has been investigated by means of the inverse spin-Hall effect (ISHE). The standing spin waves drive spin pumping, the generation of spin…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 C. W. Sandweg , Y. Kajiwara , K. Ando , E. Saitoh , B. Hillebrands

We investigate the influence of spin-orbit coupling in a non-centrosymmetric superconductor on its ground state properties near a surface. We determine the spectrum of Andreev bound states due to surface-induced mixing of bands with…

Superconductivity · Physics 2008-10-31 A. B. Vorontsov , I. Vekhter , M. Eschrig

The spin-galvanic (inverse Edelstein) and inverse spin-Hall effects are calculated for a hybrid system that combines thin superconductor and Rashba-metal layers. These effects are produced by a nonequilibrium spin polarization which is…

Superconductivity · Physics 2017-03-17 A. G. Mal'shukov

We apply a circularly and linearly polarized terahertz field on a monolayer of graphene taking into account spin-orbit interactions of the intrinsic and Rashba type. It turns out that the field can not only be used to induce a gap in the…

Mesoscale and Nanoscale Physics · Physics 2013-08-29 Andreas Scholz , Alexander López , John Schliemann

In bilayer systems consisting of an ultrathin ferromagnetic layer adjacent to a metal with strong spin-orbit coupling, an applied in-plane current induces torques on the magnetization. The torques that arise from spin-orbit coupling are of…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Paul M. Haney , Hyun-Woo Lee , Kyung-Jin Lee , Aurélien Manchon , M. D. Stiles

Two-dimensional electron gas (2DEG) formed at the interface between SrTiO3 (STO) and LaAlO3 (LAO) insulating layer is supposed to possess strong Rashba spin-orbit coupling. To date, the inverse Edelstein effect (i.e. spin-to-charge…

First-principles density-functional theory calculations show switching magnetization by 90 degree can be achieved in ultrathin BFO film by applying external electric-field. Up-spin carriers appear to the surface with positive field while…

Materials Science · Physics 2013-02-01 Hong-Jian Feng

Strong spin-orbit coupling in noncentrosymmetric materials and interfaces results in remarkable physical phenomena, such as nontrivial spin textures, which may exhibit Rashba, Dresselhaus, and other intricated configurations. This provides…

Mesoscale and Nanoscale Physics · Physics 2021-11-15 Thorsten Aull , Igor V. Maznichenko , Sergey Ostanin , Ersoy Şaşıoğlu , Ingrid Mertig

Heavily electron-doped surfaces of Bi$_2$Se$_3$ have been studied by spin and angle resolved photoemission spectroscopy. Upon doping, electrons occupy a series of {\bf k}-split pairs of states above the topological surface state. The {\bf…

Strongly Correlated Electrons · Physics 2012-04-25 Z. -H. Pan , E. Vescovo , A. V. Fedorov , B. Sinkovic , D. Gardner , S. Chu , Y. S. Lee , G. D. Gu , T. Valla

The Magnetoelectric Spin-Orbit (MESO) technology aims to bring logic into memory by combining a ferromagnet with a magnetoelectric (ME) element for information writing, and a spin-orbit (SO) element for information read-out through…

We report spin-to-charge and charge-to-spin conversion at room temperature in heterostructure devices that interface an archetypal Dirac semimetal, Cd3As2, with a metallic ferromagnet, Ni0.80Fe0.20 (permalloy). The spin-charge…

The spin-charge coupled dynamics in a thin, magnetized metallic system are investigated. The effective driving force acting on the charge carriers is generated by a dynamical magnetic texture, which can be induced, e.g., by a magnetic…

Mesoscale and Nanoscale Physics · Physics 2017-03-06 Sebastian Tölle , Ulrich Eckern , Cosimo Gorini

We study the spin-charge conversion mechanisms in a two-dimensional gas of electrons moving in a smooth disorder potential by accounting for both Rashba-type and Mott's skew scattering contributions. We find that quantum interference…

Mesoscale and Nanoscale Physics · Physics 2017-11-29 Chunli Huang , Mirco Milletari , Miguel Cazalilla