OBSERVATION OF TAMM STATES IN SUPERLATTICES

被引：169

作者：

OHNO, H ^{[1
]}

MENDEZ, EE ^{[1
]}

BRUM, JA ^{[1
]}

HONG, JM ^{[1
]}

AGULLORUEDA, F ^{[1
]}

CHANG, LL ^{[1
]}

ESAKI, L ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.64.2555

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed localized surface states (Tamm states) intentionally introduced in AlGaAs/GaAs superlattices by a terminating layer of AlAs. The formation of these states is manifested by excitonic interband transitions in photoluminescence excitation spectra. Critical confirmation is provided by photocurrent experiments under an electric field that show additional transitions as well as anticrossing interactions between the Tamm states and the Stark-ladder states associated with the superlattice. © 1990 The American Physical Society.

引用

页码：2555 / 2558

页数：4

共 6 条

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