Optical conductivity of a two-dimensional electron liquid with spin-orbit interaction

被引：19

作者：

Farid, Abdel-Khalek ^{[1
]}

Mishchenko, Eugene G. ^{[1
]}

机构：

[1] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.97.096604

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interplay of electron-electron interactions and spin-orbit coupling leads to a new contribution to the homogeneous optical conductivity of the electron liquid. The latter is known to be insensitive to many-body effects for a conventional electron system with parabolic dispersion. The parabolic spectrum has its origin in the Galilean invariance which is broken by spin-orbit coupling. This opens up a possibility for the optical conductivity to probe electron-electron interactions. We analyze the interplay of interactions and spin-orbit coupling and obtain optical conductivity beyond RPA.

引用

页数：4

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