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Simultaneous manipulation of charge and spin density distributions in materials is the key element required in spintronics applications. Here we study the formation of coupled spin and charge densities arising in scattering of electrons by…

介观与纳米尺度物理 · 物理学 2023-06-21 S. Wolski , V. K. Dugaev , E. Ya. Sherman

Spin transmission at ferromagnet/heavy metal interfaces is of vital importance for many spintronic devices. Usually the spin current transmission is limited by the spin mixing conductance and loss mechanisms such as spin memory loss. In…

Spin transport of magnonic excitations in uniaxial insulating antiferromagnets (AFs) is investigated. In linear response to spin biasing and a temperature gradient, the spin transport properties of normal-metal--insulating…

介观与纳米尺度物理 · 物理学 2020-02-05 Roberto E. Troncoso , Scott A. Bender , Arne Brataas , Rembert A. Duine

Spintronics---the all-electrical control of the electron spin for quantum or classical information storage and processing---is one of the most promising applications of the two-dimensional material graphene. Although pristine graphene has…

介观与纳米尺度物理 · 物理学 2018-10-24 Chunli Huang , Y. D. Chong , Miguel. A. Cazalilla

Magnetic heterostructures that combine large spin-orbit torque efficiency, perpendicular magnetic anisotropy, and low resistivity are key to develop electrically-controlled memory and logic devices. Here we report on vector measurements of…

材料科学 · 物理学 2017-01-10 Abhijit Ghosh , Kevin Garello , Can Onur Avci , Mihai Gabureac , Pietro Gambardella

We construct a spin-drift-diffusion model to describe spin-polarized electron transport in zincblende semiconductors in the presence of magnetic fields, electric fields, and off-diagonal strain. We present predictions of the model for…

材料科学 · 物理学 2009-11-11 M. Hruska , S. Kos , S. A. Crooker , A. Saxena , D. L. Smith

Spin-dependent electronic transport through multiferroic Co/PbTiO$_{3}$/Co tunnel junctions is studied theoretically. Conductances calculated within the Landauer-B\"uttiker formalism yield both a large tunnel magnetoresistance (TMR) and a…

材料科学 · 物理学 2015-09-30 Vladislav S. Borisov , Sergey Ostanin , Steven Achilles , Jürgen Henk , Ingrid Mertig

We present a theoretical investigation of anisotropic superconducting spin transport at a magnetic interface between a p-wave superconductor and a ferromagnetic insulator. Our formulation describes the ferromagnetic resonance modulations…

超导电性 · 物理学 2022-10-18 Yuya Ominato , Ai Yamakage , Mamoru Matsuo

According to the spin-torque model, current-driven magnetic dynamics in ferromagnetic multilayers is determined by the transfer of electron spin perpendicular to the layers' magnetizations. By separating the largest contributions to the…

材料科学 · 物理学 2007-05-23 S. Urazhdin

Conventional and spin-related thermoelectric effects in electronic transport through a nanoscopic system exhibiting magnetic anisotropy $-$with both uniaxial and transverse components$-$ are studied theoretically in the linear response…

介观与纳米尺度物理 · 物理学 2015-11-13 Maciej Misiorny , Józef Barnaś

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…

介观与纳米尺度物理 · 物理学 2019-10-02 X. P. Zhang , F. S. Bergeret , V. N. Golovach

We formulate a generalized Chalker--Coddington network model that describes the effect of nuclear spins on the two-dimensional electron gas in the quantum Hall regime. We find exact analytical expression for the transmission coefficient of…

无序系统与神经网络 · 物理学 2009-11-19 V. Kagalovsky , A. L. Chudnovskiy

Magnetic molecules have played a central role in the development of magnetism and coordination chemistry and their study keeps leading innovation in cutting-edge scientific fields such as magnetic resonance, magnetism, spintronics, and…

材料科学 · 物理学 2022-02-09 Alessandro Lunghi

We have determined the spin-memory-loss parameter, $\delta_{Co/Ru}$, by measuring the transmission of spin-triplet and spin-singlet Cooper pairs across Co/Ru interfaces in Josephson junctions and by Current-Perpendicular-to-Plane Giant…

介观与纳米尺度物理 · 物理学 2012-08-27 Mazin A. Khasawneh , Carolin Klose , W. P. Pratt, , Norman O. Birge

Electron-magnon coupling at the interface between a normal metal and a magnetically ordered insulator modifies the electrical conductivity of the normal metal, an effect known as spin-Hall magnetoresistance. It can also facilitate…

介观与纳米尺度物理 · 物理学 2026-01-21 Oliver Franke , Duje Akrap , Piet W. Brouwer

Spin-phonon coupling is the main drive of spin relaxation and decoherence in solid-state semiconductors at finite temperature. Controlling this interaction is a central problem for many disciplines, ranging from magnetic resonance to…

材料科学 · 物理学 2022-08-23 Alessandro Lunghi

We studied the spin-dependent quantum transport properties using a simple modelling of a Datta-Das spin transistor. We refine previous results by accounting the propagation medium changes of opacity felt by itinerant electrons, when the…

介观与纳米尺度物理 · 物理学 2015-07-10 R. Cuan , J. J. González , L. Diago-Cisneros

Recent experimental breakthroughs have demonstrated that the electron spin in silicon can be reliably injected and detected as well as transferred over distances exceeding 1 mm. We propose an on-chip communication paradigm which is based on…

材料科学 · 物理学 2011-09-23 Hanan Dery , Yang Song , Pengke Li , Igor Zutic

Spin backflow and spin-memory loss have been well established to considerably lower the interfacial spin transmissivity of metallic magnetic interfaces and thus the energy efficiency of spin-orbit torque technologies. Here we report that…

应用物理 · 物理学 2021-03-15 Lijun Zhu , Lujun Zhu , Robert Buhrman

Some strategies for reducing energy consumption in information processing devices involve the use of spin rather than charge to carry information. This idea is especially attractive when the spin current is a collective one carried by the…

介观与纳米尺度物理 · 物理学 2017-05-04 Hua Chen , Allan H. MacDonald