Theory of spin Hall magnetoresistance (SMR) and related phenomena

Chen, Yan-Ting; Takahashi, Saburo; Nakayama, Hiroyasu; Althammer, Matthias; Goennenwein, Sebastian T. B.; Saitoh, Eiji; Bauer, Gerrit E. W.

Theory of spin Hall magnetoresistance (SMR) and related phenomena

Dateien

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Datum

2016

Autor:innen

Chen, Yan-Ting

Takahashi, Saburo

Nakayama, Hiroyasu

Althammer, Matthias

Goennenwein, Sebastian T. B.

Saitoh, Eiji

Bauer, Gerrit E. W.

DOI (zitierfähiger Link)

https://doi.org/10.1088/0953-8984/28/10/103004

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Journal of Physics: Condensed Matter. Institute of Physics Publishing (IOP). 2016, 28(10), 103004. ISSN 0953-8984. eISSN 1361-648X. Available under: doi: 10.1088/0953-8984/28/10/103004

Zusammenfassung

We review the so-called spin Hall magnetoresistance (SMR) in bilayers of a magnetic insulator and a metal, in which spin currents are generated in the normal metal by the spin Hall effect. The associated angular momentum transfer to the ferromagnetic layer and thereby the electrical resistance is modulated by the angle between the applied current and the magnetization direction. The SMR provides a convenient tool to non-invasively measure the magnetization direction and spin-transfer torque to an insulator. We introduce the minimal theoretical instruments to calculate the SMR, i.e. spin diffusion theory and quantum mechanical boundary conditions. This leads to a small set of parameters that can be fitted to experiments. We discuss the limitations of the theory as well as alternative mechanisms such as the ferromagnetic proximity effect and Rashba spin-orbit torques, and point out new developments.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

CHEN, Yan-Ting, Saburo TAKAHASHI, Hiroyasu NAKAYAMA, Matthias ALTHAMMER, Sebastian T. B. GOENNENWEIN, Eiji SAITOH, Gerrit E. W. BAUER, 2016. Theory of spin Hall magnetoresistance (SMR) and related phenomena. In: Journal of Physics: Condensed Matter. Institute of Physics Publishing (IOP). 2016, 28(10), 103004. ISSN 0953-8984. eISSN 1361-648X. Available under: doi: 10.1088/0953-8984/28/10/103004

BibTex

@article{Chen2016-03-16Theor-52408,
  year={2016},
  doi={10.1088/0953-8984/28/10/103004},
  title={Theory of spin Hall magnetoresistance (SMR) and related phenomena},
  number={10},
  volume={28},
  issn={0953-8984},
  journal={Journal of Physics: Condensed Matter},
  author={Chen, Yan-Ting and Takahashi, Saburo and Nakayama, Hiroyasu and Althammer, Matthias and Goennenwein, Sebastian T. B. and Saitoh, Eiji and Bauer, Gerrit E. W.},
  note={Article Number: 103004}
}

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