Theory of the pseudospin resonance in semiconductor bilayers

被引：19

作者：

Abedinpour, Saeed H. ^{[1
]}

Polini, Marco

MacDonald, A. H.

Tanatar, B.

Tosi, M. P.

Vignale, G.

机构：

[1] Scuola Normale Super Pisa, NEST CNR INFM, I-56126 Pisa, Italy

[2] Univ Texas Austin, Dept Phys, Austin, TX USA

[3] Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey

[4] Univ Missouri Columbia, Dept Phys & Astron, Columbia, MO 65211 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.99.206802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 many-body theory of the dependence of the energy and the damping of this mode on layer separation d. Based on these results, we discuss the possibilities of realizing transport-current driven pseudospin-transfer oscillators in semiconductors, and of using the pseudospin-transfer effect as an experimental probe of intersubband plasmons.

引用

页数：4

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