Giant spontaneous Hall effect in zero-moment Mn2Ru x Ga
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2015Access:
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Naganivetha Thiyagarajah, Yong-Chang Lau, Davide Betto, Kiril Borisov, J. M. D. Coey, Plamen Stamenov and Karsten Rode, Giant spontaneous Hall effect in zero-moment Mn2Ru x Ga, Applied Physics Letters, 106, 2015, 122402 -Download Item:
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Abstract:
Spin-dependent transport properties of Mn2Ru x Ga thin-films are studied as function of the Ru concentration and the substrate-induced strain. The large spontaneous Hall angle of 7.7% twenty times bigger than in other 3d metals is a signature of its half-metallicity. The compensation temperature where the magnetization of the two inequivalent antiferromagnetically coupled Mn sublattices cancel can be tuned by varying x or the biaxial strain. This zero-moment half metal is free from demagnetizing forces and creates no stray field, effectively removing two obstacles to integrating magnetic elements in densely packed, nanometer-scale memory elements, and millimeter-wave generators.
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Grant Number
Science Foundation Ireland (SFI)
13/ERC/I2561
Science Foundation Ireland (SFI)
11/SIRG/I2130.
Author's Homepage:
http://people.tcd.ie/rodekhttp://people.tcd.ie/stamenp
http://people.tcd.ie/dbetto
http://people.tcd.ie/jcoey
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Science Foundation Ireland (SFI)Science Foundation Ireland (SFI)
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Applied Physics Letters106
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Mn2Ru x Ga thin-filmsDOI:
http://dx.doi.org/10.1063/1.4913687The following license files are associated with this item: