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Spin–Orbit Torque Switching in a Nearly Compensated Heusler Ferrimagnet
Author(s) -
Finley Joseph,
Lee ChiaHao,
Huang Pinshane Y.,
Liu Luqiao
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201805361
Subject(s) - ferrimagnetism , spintronics , materials science , condensed matter physics , magnetic moment , ferromagnetism , spin polarization , magnetic anisotropy , heusler compound , magnetic field , magnetization , physics , electron , quantum mechanics
Ferrimagnetic materials combine the advantages of the low magnetic moment of an antiferromagnet and the ease of realizing magnetic reading of a ferromagnet. Recently, it was demonstrated that compensated ferrimagnetic half metals can be realized in Heusler alloys, where high spin polarization, zero magnetic moment, and low magnetic damping can be achieved at the same time. In this work, by studying the spin–orbit torque induced switching in the Heusler alloy Mn 2 Ru 1− x Ga, it is found that efficient current‐induced magnetic switching can be realized in a nearly compensated sample with strong perpendicular anisotropy and large film thickness. This work demonstrates the possibility of employing compensated Heusler alloys for fast, energy‐efficient spintronic devices.