Magnetic properties and anisotropic magnetoresistance of antiperovskite nitride Mn3GaN/Co3FeN exchange-coupled bilayers

H. Sakakibara*, H. Ando, Y. Kuroki, S. Kawai, K. Ueda, H. Asano

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Epitaxial bilayers of antiferromagnetic Mn3GaN/ferromagnetic Co3FeN with an antiperovskite structure were grown by reactive magnetron sputtering, and their structural, magnetic, and electrical properties were investigated. Exchange coupling with an exchange field Hex of 0.4 kOe at 4 K was observed for Mn3GaN (20 nm)/Co3FeN (5 nm) bilayers. Negative anisotropic magnetoresistance (AMR) effect in Co3FeN was observed and utilized to detect magnetization reversal in exchange-coupled Mn3GaN/Co3FeN bilayers. The AMR results showed evidence for current-induced spin transfer torque in antiferromagnetic Mn3GaN.

Original languageEnglish
Article number17D725
JournalJournal of Applied Physics
Volume117
Issue number17
DOIs
Publication statusPublished - 2015 May 7
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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