Spin Dependent Joule Heating due to Rashba Coupling and Zitterbewegung

Details Spin Dependent Joule Heating due to Rashba Coupling and Zitterbewegung Spin Dependent Joule Heating due to Rashba Coupling and Zitterbewegung

2010-01-21

arxiv.org/abs/1001.3746v2

Physics

Condensed Matter

Materials Science

5 pages, 3 figures

Scientific paper

Investigating microwave absorption in asymmetric Si quantum wells in an external magnetic field, we discover a spin dependent component of Joule heating at spin resonance. We explain this effect in terms of Rashba spin-orbit coupling which results in a current induced spin precession and Zitterbewegung. Evidence is based on the observation of a specific dependence of the electron spin resonance line shape and its amplitude on the experimental geometry which in some range suggests a "negative" differential power absorption.

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