Spin Hall magnetoresistance in a canted ferrimagnet

Kathrin Ganzhorn; Joseph Barker; Richard Schlitz; Benjamin A. Piot; Katharina Ollefs; Francois Guillou; Fabrice Wilhelm; Andrei Rogalev; Gerrit E W Bauer; null More Authors

doi:10.1103/PhysRevB.94.094401

Spin Hall magnetoresistance in a canted ferrimagnet

Kathrin Ganzhorn, Joseph Barker, Richard Schlitz, Benjamin A. Piot, Katharina Ollefs, Francois Guillou, Fabrice Wilhelm, Andrei Rogalev, Gerrit E W Bauer, More Authors

QN/Bauer Group

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Abstract

We study the spin Hall magnetoresistance effect in ferrimagnet/normal metal bilayers, comparing the response in collinear and canted magnetic phases. In the collinear magnetic phase, in which the sublattice magnetic moments are all aligned along the same axis, we observe the conventional spin Hall magnetoresistance. In contrast, in the canted phase, the magnetoresistance changes sign. Using atomistic spin simulations and x-ray absorption experiments, we can understand these observations in terms of the magnetic field and temperature dependent orientation of magnetic moments on different magnetic sublattices. This enables a magnetotransport based investigation of noncollinear magnetic textures.

Original language	English
Article number	094401
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	94
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.94.094401
Publication status	Published - 1 Sept 2016

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abstract = "We study the spin Hall magnetoresistance effect in ferrimagnet/normal metal bilayers, comparing the response in collinear and canted magnetic phases. In the collinear magnetic phase, in which the sublattice magnetic moments are all aligned along the same axis, we observe the conventional spin Hall magnetoresistance. In contrast, in the canted phase, the magnetoresistance changes sign. Using atomistic spin simulations and x-ray absorption experiments, we can understand these observations in terms of the magnetic field and temperature dependent orientation of magnetic moments on different magnetic sublattices. This enables a magnetotransport based investigation of noncollinear magnetic textures.",

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AU - Ganzhorn, Kathrin

AU - Barker, Joseph

AU - Schlitz, Richard

AU - Piot, Benjamin A.

AU - Ollefs, Katharina

AU - Guillou, Francois

AU - Wilhelm, Fabrice

AU - Rogalev, Andrei

AU - Bauer, Gerrit E W

AU - More Authors, null

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N2 - We study the spin Hall magnetoresistance effect in ferrimagnet/normal metal bilayers, comparing the response in collinear and canted magnetic phases. In the collinear magnetic phase, in which the sublattice magnetic moments are all aligned along the same axis, we observe the conventional spin Hall magnetoresistance. In contrast, in the canted phase, the magnetoresistance changes sign. Using atomistic spin simulations and x-ray absorption experiments, we can understand these observations in terms of the magnetic field and temperature dependent orientation of magnetic moments on different magnetic sublattices. This enables a magnetotransport based investigation of noncollinear magnetic textures.

AB - We study the spin Hall magnetoresistance effect in ferrimagnet/normal metal bilayers, comparing the response in collinear and canted magnetic phases. In the collinear magnetic phase, in which the sublattice magnetic moments are all aligned along the same axis, we observe the conventional spin Hall magnetoresistance. In contrast, in the canted phase, the magnetoresistance changes sign. Using atomistic spin simulations and x-ray absorption experiments, we can understand these observations in terms of the magnetic field and temperature dependent orientation of magnetic moments on different magnetic sublattices. This enables a magnetotransport based investigation of noncollinear magnetic textures.

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Spin Hall magnetoresistance in a canted ferrimagnet

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