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Phys. Rev. Lett. 95, 107203 (2005) [4 pages]

Strain-Induced Coupling of Spin Current to Nanomechanical Oscillations

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A. G. Mal’shukov1, C. S. Tang2, C. S. Chu3, and K. A. Chao4
1Institute of Spectroscopy, Russian Academy of Science, 142190, Troitsk, Moscow oblast, Russia
2Physics Division, National Center for Theoretical Sciences, P.O. Box 2-131, Hsinchu 30013, Taiwan, Republic of China
3Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan, Republic of China
4Solid State Theory Division, Department of Physics, Lund University, S-22362 Lund, Sweden

Received 6 May 2005; published 1 September 2005

See accompanying Physics Focus

We propose a setup which allows us to couple the electron spin degree of freedom to the mechanical motions of a nanomechanical system not involving any of the ferromagnetic components. The proposed method employs the strain-induced spin-orbit interaction of electrons in narrow gap semiconductors. We have shown how this method can be used for detection and manipulation of the spin flow through a suspended rod in a nanomechanical device.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.107203
DOI:
10.1103/PhysRevLett.95.107203
PACS:
75.40.Gb, 71.70.Ej, 71.70.Fk, 72.25.−b
 
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