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Spin Hall magnetoresistance in a canted ferrimagnet

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2016

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Ganzhorn, Kathrin
Barker, Joseph
Schlitz, Richard
Piot, Benjamin A.
Ollefs, Katharina
Guillou, Francois
Wilhelm, Fabrice
Rogalev, Andrei
Opel, Matthias
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https://doi.org/10.1103/PhysRevB.94.094401
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http://arxiv.org/abs/1605.07441

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Physical Review B. American Physical Society (APS). 2016, 94(9), 094401. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.94.094401

Zusammenfassung

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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ISO 690GANZHORN, Kathrin, Joseph BARKER, Richard SCHLITZ, Benjamin A. PIOT, Katharina OLLEFS, Francois GUILLOU, Fabrice WILHELM, Andrei ROGALEV, Matthias OPEL, Sebastian T. B. GOENNENWEIN, 2016. Spin Hall magnetoresistance in a canted ferrimagnet. In: Physical Review B. American Physical Society (APS). 2016, 94(9), 094401. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.94.094401
BibTex
@article{Ganzhorn2016-05-24T13:19:53Zmagne-51868,
  year={2016},
  doi={10.1103/PhysRevB.94.094401},
  title={Spin Hall magnetoresistance in a canted ferrimagnet},
  number={9},
  volume={94},
  issn={2469-9950},
  journal={Physical Review B},
  author={Ganzhorn, Kathrin and Barker, Joseph and Schlitz, Richard and Piot, Benjamin A. and Ollefs, Katharina and Guillou, Francois and Wilhelm, Fabrice and Rogalev, Andrei and Opel, Matthias and Goennenwein, Sebastian T. B.},
  note={Article Number: 094401}
}
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