Theory of the Pseudospin Resonance in Semiconductor Bilayers

Details Theory of the Pseudospin Resonance in Semiconductor Bilayers Theory of the Pseudospin Resonance in Semiconductor Bilayers

2007-06-12

arxiv.org/abs/0706.1702v1

Phys. Rev. Lett. 99, 206802 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4+ pages, 3 figures, submitted

Scientific paper

10.1103/PhysRevLett.99.206802

The pseudospin degree of freedom in a semiconductor bilayer gives rise to a collective mode analogous to the ferromagnetic resonance mode of a ferromagnet. We present a theory of the dependence of the energy and the damping of this mode on layer separation $d$. Based on these results, we discuss the possibility of realizing transport-current driven pseudospin-transfer oscillators in semiconductors.

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