The zero-moment half metal: How could it change spin electronics?

Davide Betto, Karsten Rode, Naganivetha Thiyagarajah, Yong Chang Lau, Kiril Borisov, Gwenael Atcheson, Mario Ic, Thomas Archer, Plamen Stamenov, J. M.D. Coey

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The Heusler compound Mn2RuxGa (MRG) may well be the first compensated half metal. Here, the structural, magnetic and transport properties of thin films of MRG are discussed. There is evidence of half-metallicity up to x = 0.7, and compensation of the two Mn sublattice moments is observed at specific compositions and temperatures, leading to a zero-moment half metal. There are potential benefits for using such films with perpendicular anisotropy for spin-torque magnetic tunnel junctions and oscillators, such as low critical current, high tunnel magnetoresistance ratio, insensitivity to external fields and resonance frequency in the THz range.

Original languageEnglish
Article number055601
JournalAIP Advances
Volume6
Issue number5
DOIs
Publication statusPublished - 2016 May 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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