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The presence of spin-orbit coupling drives the anomalous magnetotransport at oxide interfaces and forms the basis for numerous intriguing properties of these 2D electron systems, such as topologically protected phases or anti-localization.…

Strongly Correlated Electrons · Physics 2018-02-28 Patrick Seiler , Jone Zabaleta , Robin Wanke , Jochen Mannhart , Thilo Kopp , Daniel Braak

We show here theoretically and experimentally that a Rashba-split electron state inside a ferromagnet can efficiently convert a dynamical spin accumulation into an electrical voltage. The effect is understood to stem from the Rashba…

A charge flow through a magnetic tunnel junction (MTJ) leads to the generation of a spin-polarized current which exerts a spin-transfer torque (STT) on the magnetization. When the density of applied direct current exceeds some critical…

Mesoscale and Nanoscale Physics · Physics 2019-07-10 A. I. Nikitchenko , N. A. Pertsev

We achieve current-induced switching in collinear insulating antiferromagnetic CoO/Pt, with fourfold in-plane magnetic anisotropy. This is measured electrically by spin Hall magnetoresistance and confirmed by the magnetic field-induced…

As electrical control of N\'eel order opens the door to reliable antiferromagnetic spintronic devices, understanding the microscopic mechanisms of antiferromagnetic switching is crucial. Spatially-resolved studies are necessary to…

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

Pure spin current has transfigured the energy-efficient spintronic devices and it has the salient characteristic of transport of the spin angular momentum. Spin pumping is a potent method to generate pure spin current and for its increased…

The spin mixing conductance (SMC) is a key quantity determining efficiency of spin transport across interfaces. Thus, knowledge of its precise value is required for accurate measurement of parameters quantifying numerous effects in…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Kapildeb Dolui , Utkarsh Bajpai , Branislav K. Nikolic

Current induced spin-orbit torques driven by the conventional spin Hall effect are widely used to manipulate the magnetization. This approach, however, is nondeterministic and inefficient for the switching of magnets with perpendicular…

Current-induced spin-orbit torque (SOT) has emerged as a promising method for achieving energy-efficient magnetisation switching in advanced spintronic devices. Over the past two decades, researchers have primarily focused on enhancing spin…

High spin to charge conversion efficiency is the requirement for the spintronics devices which is governed by spin pumping and inverse spin Hall effect (ISHE). In last one decade, ISHE and spin pumping are heavily investigated in…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 Koustuv Roy , Abhisek Mishra , Pushpendra Gupta , Shaktiranjan Mohanty , Braj Bhusan Singh , Subhankar Bedanta

We report on the temperature and layer thickness variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements reveal dissimilar temperature evolutions of longitudinal and transverse…

Efficient generation of spin-orbit torques (SOTs) is central for the exciting field of spin-orbitronics. Platinum, the archetypal spin Hall material, has the potential to be an outstanding provider for spin-orbit torques due to its giant…

Mesoscale and Nanoscale Physics · Physics 2021-08-17 Lijun Zhu , Daniel C. Ralph , Robert A Buhrman

While current-induced spin-orbit torques (SOTs) have been extensively studied in ferromagnets and antiferromagnets, ferrimagnets have been less studied. Here we report the presence of enhanced spin-orbit torques resulting from negative…

Materials Science · Physics 2017-05-24 Rahul Mishra , Jiawei Yu , Xuepeng Qiu , M. Motapothula , T. Venkatesan , Hyunsoo Yang

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

Interfaces between heavy metals (HMs) and antiferromagnetic insulators (AFIs) have recently become highly investigated and debated systems in the effort to create spintronic devices able to function at terahertz frequencies. Such…

The process of spin-charge interconversion is critical in modern spintronics. Nonetheless, experiments conducted on a wide variety of magnetic heterostructures consistently report that charge-to-spin and spin-to-charge conversion…

Materials Science · Physics 2025-03-27 Shuyuan Shi , Enlong Liu , Fanrui Hu , Guoyi Shi , Aurelien Manchon , Hyunsoo Yang

We demonstrate that the spin orientation of an electron propagating in a one-dimensional nanostructure with Rashba spin-orbit (SO) coupling can be manipulated on demand by changing the geometry of the nanosystem. Shape deformations that…

Mesoscale and Nanoscale Physics · Physics 2017-01-31 Zu-Jian Ying , Paola Gentile , Carmine Ortix , Mario Cuoco

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

We discuss a spin-transfer torque device, where the role of the soft ferromagnetic layer is played by a magnetic particle or a magnetic molecule, in weak tunnel contact with two spin polarized leads. We investigate if the magnetization of…

Mesoscale and Nanoscale Physics · Physics 2015-10-19 P. Gartland , D. Davidovic