Conduction-band minimum of (GaAs)1/(AlAs)1 superlattices: Relationship to X minimum of AlAs

Weikun Ge; W. D. Schmidt; M. D. Sturge; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevB.44.3432

Conduction-band minimum of (GaAs)1/(AlAs)1 superlattices: Relationship to X minimum of AlAs

Weikun Ge, W. D. Schmidt, M. D. Sturge, L. N. Pfeiffer, K. W. West

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10 Scopus citations

Abstract

We show that the conduction-band minimum in a (GaAs)1/(AlAs)1 superlattice derives from the Xx,y minimum of bulk AlAs, not from L of GaAs as predicted by many theoretical calculations. This is shown by the sign of the shift in the low-temperature photoluminescence under [001] stress, by the relative magnitudes of the shifts under [100] and [110] stress, by the phonon sidebands, and by the observation of a splitting under [100] but not under [110] stress.

Original language	English (US)
Pages (from-to)	3432-3435
Number of pages	4
Journal	Physical Review B
Volume	44
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.44.3432
State	Published - 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.44.3432

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title = "Conduction-band minimum of (GaAs)1/(AlAs)1 superlattices: Relationship to X minimum of AlAs",

abstract = "We show that the conduction-band minimum in a (GaAs)1/(AlAs)1 superlattice derives from the Xx,y minimum of bulk AlAs, not from L of GaAs as predicted by many theoretical calculations. This is shown by the sign of the shift in the low-temperature photoluminescence under [001] stress, by the relative magnitudes of the shifts under [100] and [110] stress, by the phonon sidebands, and by the observation of a splitting under [100] but not under [110] stress.",

author = "Weikun Ge and Schmidt, {W. D.} and Sturge, {M. D.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "1991",

doi = "10.1103/PhysRevB.44.3432",

language = "English (US)",

volume = "44",

pages = "3432--3435",

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T1 - Conduction-band minimum of (GaAs)1/(AlAs)1 superlattices

T2 - Relationship to X minimum of AlAs

AU - Ge, Weikun

AU - Schmidt, W. D.

AU - Sturge, M. D.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1991

Y1 - 1991

N2 - We show that the conduction-band minimum in a (GaAs)1/(AlAs)1 superlattice derives from the Xx,y minimum of bulk AlAs, not from L of GaAs as predicted by many theoretical calculations. This is shown by the sign of the shift in the low-temperature photoluminescence under [001] stress, by the relative magnitudes of the shifts under [100] and [110] stress, by the phonon sidebands, and by the observation of a splitting under [100] but not under [110] stress.

AB - We show that the conduction-band minimum in a (GaAs)1/(AlAs)1 superlattice derives from the Xx,y minimum of bulk AlAs, not from L of GaAs as predicted by many theoretical calculations. This is shown by the sign of the shift in the low-temperature photoluminescence under [001] stress, by the relative magnitudes of the shifts under [100] and [110] stress, by the phonon sidebands, and by the observation of a splitting under [100] but not under [110] stress.

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DO - 10.1103/PhysRevB.44.3432

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JO - Physical Review B

JF - Physical Review B

IS - 7

ER -

Conduction-band minimum of (GaAs)1/(AlAs)1 superlattices: Relationship to X minimum of AlAs

Abstract

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