Space group symmetry of the conduction band minimum in very short period GaAs AlAs superlattices

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

doi:10.1016/0038-1098(92)90726-P

Space group symmetry of the conduction band minimum in very short period GaAs AlAs superlattices

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

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

2 Scopus citations

Abstract

In a perfect (GaAs)_m(AlAs)_n type-II superlattice the symmetry of the conduction band states, and therefore the band mixing, depends on whether m, n or (m+n) are odd or even. We have investigated the symmetry of the conduction band minima in very short-period superlattices (m≤n≤4) by time resolved photoluminescence under applied uniaxial stress, and find that selection rules that depend on space group symmetry through k-conservation are well obeyed, but parity with respect to space inversion is apparently not a good quantum number in our samples.

Original language	English (US)
Pages (from-to)	951-954
Number of pages	4
Journal	Solid State Communications
Volume	82
Issue number	12
DOIs	https://doi.org/10.1016/0038-1098(92)90726-P
State	Published - Jun 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

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10.1016/0038-1098(92)90726-P

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title = "Space group symmetry of the conduction band minimum in very short period GaAs AlAs superlattices",

abstract = "In a perfect (GaAs)m(AlAs)n type-II superlattice the symmetry of the conduction band states, and therefore the band mixing, depends on whether m, n or (m+n) are odd or even. We have investigated the symmetry of the conduction band minima in very short-period superlattices (m≤n≤4) by time resolved photoluminescence under applied uniaxial stress, and find that selection rules that depend on space group symmetry through k-conservation are well obeyed, but parity with respect to space inversion is apparently not a good quantum number in our samples.",

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

year = "1992",

month = jun,

doi = "10.1016/0038-1098(92)90726-P",

language = "English (US)",

volume = "82",

pages = "951--954",

journal = "Solid State Communications",

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T1 - Space group symmetry of the conduction band minimum in very short period GaAs AlAs superlattices

AU - Ge, Weikun

AU - Schmidt, W. D.

AU - Sturge, M. D.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 1992/6

Y1 - 1992/6

N2 - In a perfect (GaAs)m(AlAs)n type-II superlattice the symmetry of the conduction band states, and therefore the band mixing, depends on whether m, n or (m+n) are odd or even. We have investigated the symmetry of the conduction band minima in very short-period superlattices (m≤n≤4) by time resolved photoluminescence under applied uniaxial stress, and find that selection rules that depend on space group symmetry through k-conservation are well obeyed, but parity with respect to space inversion is apparently not a good quantum number in our samples.

AB - In a perfect (GaAs)m(AlAs)n type-II superlattice the symmetry of the conduction band states, and therefore the band mixing, depends on whether m, n or (m+n) are odd or even. We have investigated the symmetry of the conduction band minima in very short-period superlattices (m≤n≤4) by time resolved photoluminescence under applied uniaxial stress, and find that selection rules that depend on space group symmetry through k-conservation are well obeyed, but parity with respect to space inversion is apparently not a good quantum number in our samples.

UR - https://www.scopus.com/pages/publications/0026877479

UR - https://www.scopus.com/pages/publications/0026877479#tab=citedBy

U2 - 10.1016/0038-1098(92)90726-P

DO - 10.1016/0038-1098(92)90726-P

M3 - Article

AN - SCOPUS:0026877479

SN - 0038-1098

VL - 82

SP - 951

EP - 954

JO - Solid State Communications

JF - Solid State Communications

IS - 12

ER -

Space group symmetry of the conduction band minimum in very short period GaAs AlAs superlattices

Abstract

All Science Journal Classification (ASJC) codes

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