Spin Hall magnetoresistance in Pt/Fe3O4 thin films at room temperature

Z. Ding, B. L. Chen, J. H. Liang, J. Zhu, J. X. Li, and Y. Z. Wu
Phys. Rev. B 90, 134424 – Published 30 October 2014

Abstract

We studied angle-dependent magnetoresistance in Pt/Fe3O4 bilayers at room temperature. Based on field-dependent and angle-dependent measurements, we show that spin Hall magnetoresistance (SMR) exists in the Pt/Fe3O4 system at room temperature, although the Fe3O4 layer is not a good insulator. The SMR contribution in Pt/Fe3O4 can be clearly identified for thin enough Fe3O4 films. Moreover, the SMR in Pt/Fe3O4 does not rely on the current direction, which is different from the anisotropic magnetoresistance in single-crystalline Fe3O4 films.

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  • Received 13 August 2014
  • Revised 12 October 2014

DOI:https://doi.org/10.1103/PhysRevB.90.134424

©2014 American Physical Society

Authors & Affiliations

Z. Ding, B. L. Chen, J. H. Liang, J. Zhu, J. X. Li, and Y. Z. Wu*

  • Department of Physics, State Key Laboratory of Surface Physics and Advanced Materials Laboratory, Fudan University, Shanghai 200433, People's Republic of China

  • *wuyizheng@fudan.edu.cn

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Vol. 90, Iss. 13 — 1 October 2014

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