MAGNETOPHOTOCONDUCTIVITY STUDIES OF D0 AND D- CENTERS IN GAAS QUANTUM-WELLS IN METALLIC AND INSULATING STATES

被引：6

作者：

CHANG, YH

CHEN, TC

CHEN, CJ

CHEN, YF

机构：

[1] Department of Physics, National Taiwan University, Taipei

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.69.2256

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

D0 and D- states in GaAs quantum wells are studied simultaneously by far-infrared magnetophotoconductivity. In high magnetic fields, the observed sharp transitions are attributed to transitions between ground and excited states of D0 and D- centers, respectively. In low magnetic fields, the spectra are dominated by free-electron response, The changes in spectral responses are explained in terms of a magnetic-field-induced metal-insulator transition of the D0-D- band.

引用

页码：2256 / 2259

页数：4

共 9 条

[1] SPECTROSCOPIC OBSERVATION OF D-, DO AND CYCLOTRON-RESONANCE LINES IN N-GAAS AND N-INP AT INTERMEDIATE AND STRONG MAGNETIC-FIELDS AND UNDER DIFFERENT CONDITIONS OF BIAS, TEMPERATURE AND PRESSURE [J].