Spin waves in semiconductor microcavities

被引：7

作者：

Glazov, M. M. ^{[1
,2
]}

Kavokin, A. V. ^{[2
,3
,4
]}

机构：

[1] Ioffe Inst, St Petersburg 194021, Russia

[2] St Petersburg State Univ, Spin Opt Lab, St Petersburg 198504, Russia

[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1NJ, Hants, England

[4] Russian Quantum Ctr, Skolkovo 143025, Moscow Region, Russia

来源：

PHYSICAL REVIEW B | 2015年 / 91卷 / 16期

基金：

俄罗斯基础研究基金会;

关键词：

POLARITON CONDENSATE; TRANSPORT-PROPERTIES; CAVITY POLARITONS; GAS; SCATTERING; DYNAMICS; FLUID;

D O I：

10.1103/PhysRevB.91.161307

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show theoretically that a weakly interacting gas of spin-polarized exciton-polaritons in a semiconductor microcavity supports propagation of spin waves. The spin waves are characterized by a parabolic dispersion at small wave vectors which is governed by the polariton-polariton interaction constant. Due to spin anisotropy of polariton-polariton interactions the dispersion of spin waves depends on the orientation of the total polariton spin. For the same reason, the frequency of homogeneous spin precession/polariton spin resonance depends on their polarization degree.

引用

页数：5

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