Heusler alloys for metal spintronics

Heusler alloys have been theoretically predicted and experimentally demonstrated to be an ideal spin source due to their half-metallicity at room temperature. The half-metallicity also offers low Gilbert damping constants for fast magnetization reversal with low switching current density. These intr...

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Bibliographic Details
Published in:MRS bulletin 2022-06, Vol.47 (6), p.593-599
Main Authors: Hirohata, Atsufumi, Lloyd, David C.
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Damping
Energy Materials
Heusler alloys
Magnetic properties
Magnetization reversal
Materials Engineering
Materials Science
Metallicity
Metallurgical constituents
Nanotechnology
Review Article
Room temperature
Spintronics
Torque
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Summary:Heusler alloys have been theoretically predicted and experimentally demonstrated to be an ideal spin source due to their half-metallicity at room temperature. The half-metallicity also offers low Gilbert damping constants for fast magnetization reversal with low switching current density. These intrinsic properties can offer better operationability in spin-transfer-torque-based devices. In addition spin–orbit torque can be exerted using Heusler alloys for spin Hall and caloritronic effects. These properties can be precisely controlled by substituting the constituent elements in a Heusler alloy. We review the recent development on these spintronic devices and summarize their future perspectives. Graphical abstract
ISSN:0883-7694
1938-1425
DOI:10.1557/s43577-022-00350-1