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Pis'ma v Zh. Èksper. Teoret. Fiz., 2018, Volume 108, Issue 5, Pages 348–351 (Mi jetpl5690)  

CONDENSED MATTER

Zitterbewegung of spin split electrons

S. A. Tarasenkoa, A. V. Poshakinskiya, E. L. Ivchenkoa, I. Stepanovb, M. Ersfeldb, M. Lepsacd, B. Beschotenb

a Ioffe Institute, St. Petersburg, Russia
b 2-nd Institute of Physics and Jülich Aachen Research Alliance Fundamentals of Future Information Technology, Rheinisch-Westfälische Technische Hochschule, RWTH Aachen University, Aachen, Germany
c Peter Grünberg Institut (PGI-9)
d Jülich Aachen Research Alliance Fundamentals of Future Information Technology, Forschungszentrum Jülich GmbH, Jülich, Germany

Abstract: We describe the trembling motion of conduction-band electrons in solids. The effect originates from the fact that, in the presence of the Rashba/Dresselhaus spinorbit coupling and the Zeeman splitting, the electron velocity is not a conserved quantity and contains a contribution oscillating at the frequency determined by the spin gap. The phenomenon is similar to the Zitterwebegung of relativistic particles. Trembling motion of individual electrons can be phase-synchronized by initializing the electrons in the same spin states and detected as a macroscopic high-frequency electric current, which is maintained in the system until the electron spin coherence is lost. We also show that the amplitude of such a coherent Zitterbewegung current is increased when its frequency matches the plasmon frequency.

Funding Agency Grant Number
Russian Science Foundation 14-12-01067
Deutsche Forschungsgemeinschaft FOR 912


DOI: https://doi.org/10.1134/S0370274X18170083

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English version:
Journal of Experimental and Theoretical Physics Letters, 2018, 108:5, 326–328

Bibliographic databases:

Received: 23.07.2018

Citation: S. A. Tarasenko, A. V. Poshakinskiy, E. L. Ivchenko, I. Stepanov, M. Ersfeld, M. Lepsa, B. Beschoten, “Zitterbewegung of spin split electrons”, Pis'ma v Zh. Èksper. Teoret. Fiz., 108:5 (2018), 348–351; JETP Letters, 108:5 (2018), 326–328

Citation in format AMSBIB
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\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
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\vol 108
\issue 5
\pages 348--351
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\crossref{https://doi.org/10.1134/S0370274X18170083}
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