Observation of double cyclotron resonance in modulation-delta-doped In0.52Al0.48As/In0.53Ga0.47As heterostructure by optical detection

被引：11

作者：

Chen, YF ^{[1
]}

Dai, YT ^{[1
]}

Lo, I ^{[1
]}

机构：

[1] SUN YAT SEN,DEPT PHYS,KAOHSIUNG,TAIWAN

来源：

APPLIED PHYSICS LETTERS | 1996年 / 68卷 / 08期

关键词：

D O I：

10.1063/1.115731

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report an investigation of optical and electronic properties of a two-subband populated electron gas confined at a delta-doped Al0.48In0.52As/Ga(0.47)Ino(0.53)As heterostructure by the technique of far-infrared optically detected cyclotron resonance (ODCR). Oscillatory characteristics are observed in the ODCR spectrum, and interpreted in terms of the crossing between the Landau levels of the two-dimensional electron gas and the Fermi level from which the electron concentration and effective mass of the first and second subbands can be determined. Quite different effective masses associated with these subbands are obtained, reflecting the strong effects of conduction band nonparabolicity as well as polaron coupling in Ga0.47In0.53As quantum well. (C) 1996 American Institute of Physics.

引用

页码：1117 / 1119

页数：3

共 21 条

[1]

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[2] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].