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Spin-orbit torque switching of an antiferromagnetic metallic heterostructure

DOI: 10.1038/s41467-020-19511-4 DOI Help

Authors: S. Duttagupta (Tohoku University) , A. Kurenkov (Tohoku University) , O. A. Tretiakov (The University of New South Wales) , G. Krishnaswamy (ETH Zurich) , G. Sala (ETH Zurich) , V. Krizakova (ETH Zurich) , F. Maccherozzi (Diamond Light Source) , S. S. Dhesi (Diamond Light Source) , P. Gambardella (ETH Zurich) , S. Fukami (Tohoku University) , H. Ohno (Tohoku University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Nature Communications , VOL 11

State: Published (Approved)
Published: November 2020
Diamond Proposal Number(s): 20413

Open Access Open Access

Abstract: The ability to represent information using an antiferromagnetic material is attractive for future antiferromagnetic spintronic devices. Previous studies have focussed on the utilization of antiferromagnetic materials with biaxial magnetic anisotropy for electrical manipulation. A practical realization of these antiferromagnetic devices is limited by the requirement of material-specific constraints. Here, we demonstrate current-induced switching in a polycrystalline PtMn/Pt metallic heterostructure. A comparison of electrical transport measurements in PtMn with and without the Pt layer, corroborated by x-ray imaging, reveals reversible switching of the thermally-stable antiferromagnetic NĂ©el vector by spin-orbit torques. The presented results demonstrate the potential of polycrystalline metals for antiferromagnetic spintronics.

Journal Keywords: Applied physics; Electrical and electronic engineering; Spintronics

Diamond Keywords: Spintronics; Data Storage; Ferromagnetism; Antiferromagnetism

Subject Areas: Materials, Physics, Information and Communication Technology

Instruments: I06-Nanoscience

Added On: 16/11/2020 13:29


Discipline Tags:

Information & Communication Technologies Components & Micro-systems Materials Science Quantum Materials Physics Electronics Hard condensed matter - electronic properties Magnetism

Technical Tags:

Microscopy Spectroscopy Electron Microscopy (EM) Linear Dichroism (LD) X-ray Absorption Spectroscopy (XAS) PhotoEmmission Electron Microscopy (PEEM) X-ray Magnetic Linear Dichroism (XMLD)