Fizika Nizkikh Temperatur: Volume 43, Number 8 (August 2017), p. 1137-1140    ( to contents , go back )

Photo-spintronics of spin-orbit active electric weak links

R.I. Shekhter1, O. Entin-Wohlman2,3, M. Jonson1,4, and A. Aharony2,3

1Department of Physics, University of Gothenburg, SE-412 96 Göteborg, Sweden
E-mail: mats.jonson@physics.gu.se

2Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel

3Physics Department, Ben Gurion University, Beer Sheva 84105, Israel

4SUPA, Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, Scotland, UK

Received January 18, 2017

Abstract

We show that a carbon nanotube can serve as a functional electric weak link performing photo-spintronic transduction. A spin current, facilitated by strong spin-orbit interactions in the nanotube and not accompanied by a charge current, is induced in a device containing the nanotube weak link by circularly polarized microwaves. Nanomechanical tuning of the photo-spintronic transduction can be achieved due to the sensitivity of the spin-orbit interaction to geometrical deformations of the weak link.

PACS: 71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect;
PACS: 75.70.Tj Spin-orbit effects;
PACS: 75.76.+j Spin transport effects.

Key words: spin-orbit interactions, spintronics.

Published online: June 26, 2017

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