Barrier localization effects in AlxGa1-xAs-AlyGa1-yAs superlattices

Lok C. Lew Yan Voon; L. R. Ram-Mohan; H. Luo; J. K. Furdyna

doi:10.1103/PhysRevB.47.6585

Barrier localization effects in AlxGa1-xAs-AlyGa1-yAs superlattices

Lok C. Lew Yan Voon
, L. R. Ram-Mohan
, H. Luo
, J. K. Furdyna

Physics

Worcester Polytechnic Institute
Naval Research Laboratory
University of Notre Dame

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We demonstrate that the recently observed phenomenon of barrier localization in magnetic II-VI superlattices is also present in III-V superlattices. We investigate the role of subsidiary minima and show that above-barrier localization in both the Γ and X barriers occurs for type-I and type-II (001) superlattices in the AlxGa1-xAs-AlyGa1-yAs system. In addition, explicit evaluation of the oscillator strengths shows that the interband transitions involving the X-like conduction-band above-barrier states remain weak even though these are spatially direct.

Original language	English
Pages (from-to)	6585-6589
Number of pages	5
Journal	Physical Review B-Condensed Matter
Volume	47
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.47.6585
State	Published - 1993

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title = "Barrier localization effects in AlxGa1-xAs-AlyGa1-yAs superlattices",

abstract = "We demonstrate that the recently observed phenomenon of barrier localization in magnetic II-VI superlattices is also present in III-V superlattices. We investigate the role of subsidiary minima and show that above-barrier localization in both the Γ and X barriers occurs for type-I and type-II (001) superlattices in the AlxGa1-xAs-AlyGa1-yAs system. In addition, explicit evaluation of the oscillator strengths shows that the interband transitions involving the X-like conduction-band above-barrier states remain weak even though these are spatially direct.",

author = "\{Lew Yan Voon\}, \{Lok C.\} and Ram-Mohan, \{L. R.\} and H. Luo and Furdyna, \{J. K.\}",

year = "1993",

doi = "10.1103/PhysRevB.47.6585",

language = "English",

volume = "47",

pages = "6585--6589",

journal = "Physical Review B-Condensed Matter",

issn = "0163-1829",

publisher = "American Institute of Physics",

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T1 - Barrier localization effects in AlxGa1-xAs-AlyGa1-yAs superlattices

AU - Lew Yan Voon, Lok C.

AU - Ram-Mohan, L. R.

AU - Luo, H.

AU - Furdyna, J. K.

PY - 1993

Y1 - 1993

N2 - We demonstrate that the recently observed phenomenon of barrier localization in magnetic II-VI superlattices is also present in III-V superlattices. We investigate the role of subsidiary minima and show that above-barrier localization in both the Γ and X barriers occurs for type-I and type-II (001) superlattices in the AlxGa1-xAs-AlyGa1-yAs system. In addition, explicit evaluation of the oscillator strengths shows that the interband transitions involving the X-like conduction-band above-barrier states remain weak even though these are spatially direct.

AB - We demonstrate that the recently observed phenomenon of barrier localization in magnetic II-VI superlattices is also present in III-V superlattices. We investigate the role of subsidiary minima and show that above-barrier localization in both the Γ and X barriers occurs for type-I and type-II (001) superlattices in the AlxGa1-xAs-AlyGa1-yAs system. In addition, explicit evaluation of the oscillator strengths shows that the interband transitions involving the X-like conduction-band above-barrier states remain weak even though these are spatially direct.

UR - https://www.scopus.com/pages/publications/4243771344

U2 - 10.1103/PhysRevB.47.6585

DO - 10.1103/PhysRevB.47.6585

M3 - Article

AN - SCOPUS:4243771344

SN - 0163-1829

VL - 47

SP - 6585

EP - 6589

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 11

ER -

Barrier localization effects in AlxGa1-xAs-AlyGa1-yAs superlattices

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