Spin-transfer torque generated by a topological insulator

A. R. Mellnik, J. S. Lee, A. Richardella, J. L. Grab, P. J. Mintun, M. H. Fischer, A. Vaezi, A. Manchon, E.-A. Kim, N. Samarth and D. C. Ralph ()
Additional contact information
A. R. Mellnik: Cornell University
J. S. Lee: The Pennsylvania State University, University Park
A. Richardella: The Pennsylvania State University, University Park
J. L. Grab: Cornell University
P. J. Mintun: Cornell University
M. H. Fischer: Cornell University
A. Vaezi: Cornell University
A. Manchon: King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
E.-A. Kim: Cornell University
N. Samarth: The Pennsylvania State University, University Park
D. C. Ralph: Cornell University

Nature, 2014, vol. 511, issue 7510, 449-451

Abstract: Charge flowing in a thin film of the topological insulator bismuth selenide at room temperature can lead to spin accumulation in the insulator and a resultant strong spin-transfer torque on an adjacent thin film of ferromagnetic nickel–iron alloy, potentially offering a means of controlling the orientation of the alloy’s magnetization.

Date: 2014
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DOI: 10.1038/nature13534

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