Observation of Tamm states in superlattices

H. Ohno, E. E. Mendez, J. A. Brum, J. M. Hong, F. Agullã-Rueda, L. L. Chang, L. Esaki

研究成果: Article査読

163 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)2555-2558
ページ数4
ジャーナルPhysical Review Letters
64
21
DOI
出版ステータスPublished - 1990 1 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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