Light scattering determination of band offsets in GaAs (AlGa)As and GaSb (AlGa)Sb quantum wells: A comparative study

J. Meneńdez; A. Pinczuk; D. J. Werder; A. C. Gossard; J. H. English; T. H. Chiu; W. T. Tsang

doi:10.1016/0749-6036(87)90051-6

Light scattering determination of band offsets in GaAs (AlGa)As and GaSb (AlGa)Sb quantum wells: A comparative study

J. Meneńdez, A. Pinczuk, D. J. Werder, A. C. Gossard, J. H. English, T. H. Chiu, W. T. Tsang

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

6 Scopus citations

Abstract

We determine the energy band offsets in GaAs Al_xGa_1-xAs and GaSb Al_xGa_1-xSb quantum wells with a new light-scattering method. We measure electronic intersubband transitions in the conduction band of the quantum wells, and use this information to deduce the conduction band discontinuity ΔE_c. The light scattering technique is very accurate because ΔE_c can be determined regardless of the valence band structure or exciton binding energies. Our results indicate that the valence band offset of the two systems are very similar, suggesting the validity of a weaker form of the Common Anion Rule.

Original language	English (US)
Pages (from-to)	163-166
Number of pages	4
Journal	Superlattices and Microstructures
Volume	3
Issue number	2
DOIs	https://doi.org/10.1016/0749-6036(87)90051-6
State	Published - 1987
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Electrical and Electronic Engineering

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title = "Light scattering determination of band offsets in GaAs (AlGa)As and GaSb (AlGa)Sb quantum wells: A comparative study",

abstract = "We determine the energy band offsets in GaAs AlxGa1-xAs and GaSb AlxGa1-xSb quantum wells with a new light-scattering method. We measure electronic intersubband transitions in the conduction band of the quantum wells, and use this information to deduce the conduction band discontinuity ΔEc. The light scattering technique is very accurate because ΔEc can be determined regardless of the valence band structure or exciton binding energies. Our results indicate that the valence band offset of the two systems are very similar, suggesting the validity of a weaker form of the Common Anion Rule.",

author = "J. Mene{\'n}dez and A. Pinczuk and Werder, {D. J.} and Gossard, {A. C.} and English, {J. H.} and Chiu, {T. H.} and Tsang, {W. T.}",

year = "1987",

doi = "10.1016/0749-6036(87)90051-6",

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TY - JOUR

T1 - Light scattering determination of band offsets in GaAs (AlGa)As and GaSb (AlGa)Sb quantum wells

T2 - A comparative study

AU - Meneńdez, J.

AU - Pinczuk, A.

AU - Werder, D. J.

AU - Gossard, A. C.

AU - English, J. H.

AU - Chiu, T. H.

AU - Tsang, W. T.

PY - 1987

Y1 - 1987

N2 - We determine the energy band offsets in GaAs AlxGa1-xAs and GaSb AlxGa1-xSb quantum wells with a new light-scattering method. We measure electronic intersubband transitions in the conduction band of the quantum wells, and use this information to deduce the conduction band discontinuity ΔEc. The light scattering technique is very accurate because ΔEc can be determined regardless of the valence band structure or exciton binding energies. Our results indicate that the valence band offset of the two systems are very similar, suggesting the validity of a weaker form of the Common Anion Rule.

AB - We determine the energy band offsets in GaAs AlxGa1-xAs and GaSb AlxGa1-xSb quantum wells with a new light-scattering method. We measure electronic intersubband transitions in the conduction band of the quantum wells, and use this information to deduce the conduction band discontinuity ΔEc. The light scattering technique is very accurate because ΔEc can be determined regardless of the valence band structure or exciton binding energies. Our results indicate that the valence band offset of the two systems are very similar, suggesting the validity of a weaker form of the Common Anion Rule.

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JF - Superlattices and Microstructures

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ER -

Light scattering determination of band offsets in GaAs (AlGa)As and GaSb (AlGa)Sb quantum wells: A comparative study

Abstract

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