ELECTRON ELECTRON-SCATTERING BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON GASES

被引：47

作者：

GRAMILA, TJ ^{[1
]}

EISENSTEIN, JP ^{[1
]}

MACDONALD, AH ^{[1
]}

PFEIFFER, LN ^{[1
]}

WEST, KW ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

来源：

SURFACE SCIENCE | 1992年 / 263卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90386-K

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electron-electron scattering rates between isolated two-dimensional electron gases separated by a thin barrier have been measured at low temperatures in GaAs/AlGaAs double quantum well structures. Separate electrical connection to the two electron systems allows the injection of current into one and the detection of a small drag-induced voltage across the other. The drag voltage is a direct measure of the interwell momentum relaxation rate. Measurements of this rate suggest that two processes contribute to the interactions, simple Coulomb scattering and a longer-range process, possibly due to acoustic phonons.

引用

页码：446 / 450

页数：5

共 15 条

[1] QUANTUM OSCILLATIONS IN THE THERMAL CONDUCTANCE OF GAAS/ALGAAS HETEROSTRUCTURES [J].