Nonequilibrium Spin-Hall Detector with Alternating Current
American Journal of Modern Physics
Volume 9, Issue 1, January 2020, Pages: 7-10
Received: Apr. 15, 2020;
Accepted: May 11, 2020;
Published: May 27, 2020
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Yurii Nikolaevich Chiang, Physical Department of B. I. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, Ukraine
Mikhail Olegovich Dzyuba, Physical Department of B. I. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkov, Ukraine
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An oscillographic study of the Hall voltage with an unpolarized alternating current through a platinum sample revealed chiral features of the Hall effect, which clearly demonstrate the presence of the spin Hall effect in metals with a noticeable spin-orbit interaction. It was confirmed that, as in the case of direct current, the possibility of a spin-Hall effect is associated with the presence of an imbalance of the spins and charges at the edges of the samples, which is realized using their asymmetric geometry. In particular, it was found that such chiral features of the nonequilibrium spin-Hall effect (NSHE), such as independence from the direction of the injection current and the direction of the constant magnetic field, in the case of alternating current, make it possible to obtain a double-frequency transverse voltage, which can be used as a platform for creating spintronics devices.
Spin-Hall Effect, Spin-Charge Imbalance, Spin-Orbit interaction
To cite this article
Yurii Nikolaevich Chiang,
Mikhail Olegovich Dzyuba,
Nonequilibrium Spin-Hall Detector with Alternating Current, American Journal of Modern Physics.
Vol. 9, No. 1,
2020, pp. 7-10.
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Mott N. F. Proc. Roy. Soc. A124, 425 (1929).
M. I. Dyakonov, V. I. Perel. Pisma v JETP 13, 657 (1971) [Phys. Lett., A 35, 459 (1971)].
Jairo Sinova, Sergio O. Valenzuela, J. Wunderlich, C. H. Back, and T. Jungwirth. Rev. Mod. Phys. 87, 1213 (2015).
Bychkov Yu. A. and Rashba E. I. Pisma v Zh. Eksp. Teor. Fiz. 39, 66 (1984).
S. Murakami, N. Nagaosa, and S.-C. Zhang. Science 301, 1348 (2003).
Sinova J., D. Culcer, Q. Niu, N. Sinitsyn, T. Jungwirth, and A. H. MacDonald. Phys. Rev. Lett. 92 (12), 1 (2004).
Valenzuela S. O., and M. Tinkham. Nature 442 (7099), 176 (2006).
F. J. Jedema, H. B. Heersche, A. T. Filip, J. J. A. Baselmans, and B. J. vanWees, Nature (London) 416, 713 (2002).
R. V. Shchelushkin and Arne Brataas. Phys. Rev. B 72, 073110 (2005).
Zhang, S. Phys. Rev. Lett. 85, 393 (2000).
Yu. N. Chiang and M. O. Dzyuba. EPL, 120, 17001 (2017).
Yu. N. Chiang and M. O. Dzyuba. Physica B: Condensed Matter 558 44 (2019).