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Inverse spin Hall effect in Cr: Independence of antiferromagnetic ordering

D. Qu, S. Y. Huang, and C. L. Chien
Phys. Rev. B 92, 020418(R) – Published 29 July 2015

Abstract

Chromium is a 3d spin-density wave antiferromagnetic (AF) metal with a Néel temperature of 311 K. By using the thermal spin injection method, we have observed a large inverse spin Hall voltage in Cr. With a negligible magnetic proximity effect and a large spin Hall angle, Cr is an intrinsic pure spin current detector that is superior to many 5d metals. Even more strikingly, the temperature dependent thermal spin injection measurements show that the large spin Hall angle in Cr is independent of the AF ordering, and indicating that the inverse spin Hall effect is unrelated to AF ordering in Cr.

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  • Received 2 June 2015

DOI:https://doi.org/10.1103/PhysRevB.92.020418

©2015 American Physical Society

Authors & Affiliations

D. Qu1, S. Y. Huang1,2, and C. L. Chien1,*

  • 1Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA
  • 2Department of Physics, National Taiwan University, Taipei 10617, Taiwan

  • *clchien@jhu.edu

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Issue

Vol. 92, Iss. 2 — 1 July 2015

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