GROWTH AND CHARACTERIZATION OF SERPENTINE SUPERLATTICES IN THE GASB-ALSB SYSTEM

被引：5
|
作者：
WONG, KC
KRISHNAMURTHY, M
BRAR, B
YI, JC
KROEMER, H
ENGLISH, JH
机构：
[1] UNIV CALIF SANTA BARBARA,DEPT ELECT & COMP ENGN,SANTA BARBARA,CA 93106
[2] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106
[3] UNIV CALIF SANTA BARBARA,DEPT MAT,SANTA BARBARA,CA 93106
来源：
APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 09期
关键词：
D O I：
10.1063/1.109774
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the growth of GaSb/AlSb serpentine superlattices (SSLs) on vicinal GaAs and GaSb substrates. Cross-sectional transmission electron microscopy confirms the SSL structure and shows excellent lateral uniformity, better than previous arsenide-SSLs. Photoluminescence (PL) measurements indicate a good-quality lateral superlattice with a spectral linewidth between 13 and 15 meV. Polarization-dependent PL measurements give a normalized linear polarization around 60%, the strongest that has been seen for SSL structures. Preliminary estimates suggest much better segregation between the Ga-rich and Al-rich regions than arsenide-SSLs, with the change in aluminum concentration DELTAx almost-equal-to 0.35.
引用
收藏
页码：1211 / 1213
页数：3
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