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

共 25 条

[1] Spin-density and charge-density excitations in the paramagnetic phase of semiconductor double quantum well systems [J].

Bolcatto, PG ;

Proetto, CR .

PHYSICAL REVIEW LETTERS, 2000, 85 (08) :1734-1737

[2] Electron correlation and charge transfer instability in bilayered two-dimensional electron gas [J].

Conti, S ;

Senatore, G .

EUROPHYSICS LETTERS, 1996, 36 (09) :695-700

[3] BROKEN-SYMMETRY GROUND-STATES FOR THE 2-DIMENSIONAL ELECTRON-GAS IN A DOUBLE-QUANTUM-WELL SYSTEM [J].

COTE, R ;

BREY, L ;

MACDONALD, AH .

PHYSICAL REVIEW B, 1992, 46 (16) :10239-10250

[4] Theory of spin Coulomb drag in spin-polarized transport [J].

D'Amico, I ;

Vignale, G .

PHYSICAL REVIEW B, 2000, 62 (08) :4853-4857

[5] Plasmons in coupled bilayer structures [J].

Das Sarma, S ;

Hwang, EH .

PHYSICAL REVIEW LETTERS, 1998, 81 (19) :4216-4219

[6] ABSENCE OF SPIN-DENSITY EXCITATIONS IN QUASI-2-DIMENSIONAL ELECTRON-SYSTEMS [J].

DECCA, R ;

PINCZUK, A ;

DASSARMA, S ;

DENNIS, BS ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1994, 72 (10) :1506-1509

[7] Bose-Einstein condensation of excitons in bilayer electron systems [J].

Eisenstein, JP ;

MacDonald, AH .

NATURE, 2004, 432 (7018) :691-694

[8] INDEPENDENTLY CONTACTED 2-DIMENSIONAL ELECTRON-SYSTEMS IN DOUBLE QUANTUM-WELLS [J].

EISENSTEIN, JP ;

PFEIFFER, LN ;

WEST, KW .

APPLIED PHYSICS LETTERS, 1990, 57 (22) :2324-2326

[9]

GIULIANI GF, 2005, QUNATUM THEORY ELECT

[10] Gilbert damping and spin Coulomb drag in a magnetized electron liquid with spin-orbit interaction [J].

Hankiewicz, E. M. ;

Vignale, G. ;

Tserkovnyak, Y. .

PHYSICAL REVIEW B, 2007, 75 (17)

← 1 2 3 →