Spin switching in antiferromagnets using Néel-order spin-orbit torques

doi:10.1088/1674-1056/27/10/107201

Abstract

Antiferromagnets offer considerable potential for electronic device applications. This article reviews recent demonstrations of spin manipulation in antiferromagnetic devices using applied electrical currents. Due to spin-orbit coupling in environments with particular crystalline or structural symmetries, the electric current can induce an effective magnetic field with a sign that alternates on the lengthscale of the unit cell. The staggered effective field provides an efficient mechanism for switching antiferromagnetic domains and moving antiferromagnetic domain walls, with writing speeds in the terahertz regime.

Keywords: spintronics antiferromagnetic current-induced torques magnetic domains

Received: 07 July 2018
Revised: 06 August 2018
Accepted manuscript online:

PACS:	72.15.Gd	(Galvanomagnetic and other magnetotransport effects)
	75.50.Ee	(Antiferromagnetics)
	75.60.Ch	(Domain walls and domain structure)
	85.75.-d	(Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)

Fund:

Project supported by EPSRC (Grant No. EP/P019749/1). P Wadley acknowledges support from the Royal Society through a University Research Fellowship.

Corresponding Authors: K W Edmonds
E-mail: Kevin.Edmonds@nottingham.ac.uk

Cite this article:

P Wadley, K W Edmonds Spin switching in antiferromagnets using Néel-order spin-orbit torques 2018 Chin. Phys. B 27 107201

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Spin switching in antiferromagnets using Néel-order spin-orbit torques

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