GaAsAlAs quantum well magneto-exciton spectrum - theory and experiment

Doran D. Smith; M. Dutta; X. C. Liu; A. F. Terzis; A. Petrou; M. W. Cole; P. G. Newman

doi:10.1016/0039-6028(90)90287-I

GaAsAlAs quantum well magneto-exciton spectrum - theory and experiment

Doran D. Smith
, M. Dutta
, X. C. Liu
, A. F. Terzis
, A. Petrou
, M. W. Cole
, P. G. Newman

Physics

United States Army
SUNY Buffalo

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

3 Scopus citations

Abstract

A theory is developed for the magnetic field substates of the e₁-hh₁, and e₂-hh₂ excitons of a GaAsAlAs quantum well. The theory accounts for the Coulomb potential between the electron and hole, the magnetic field, and the finite width of the quantum well. These results are compared to a direct reflectivity experiment where several magnetic substates of the e₁-hh₁ and e₂-hh₂ excitons are observed. The binding energy and diamagnetic shift agree well for e₁-hh₁, but a significant discrepancy is noted for e₂-hh₂. The discrepancy is interpreted in terms of a need for a more complete band structure theory.

Original language	English
Pages (from-to)	184-187
Number of pages	4
Journal	Surface Science
Volume	228
Issue number	1-3
DOIs	https://doi.org/10.1016/0039-6028(90)90287-I
State	Published - Apr 1 1990

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title = "GaAsAlAs quantum well magneto-exciton spectrum - theory and experiment",

abstract = "A theory is developed for the magnetic field substates of the e1-hh1, and e2-hh2 excitons of a GaAsAlAs quantum well. The theory accounts for the Coulomb potential between the electron and hole, the magnetic field, and the finite width of the quantum well. These results are compared to a direct reflectivity experiment where several magnetic substates of the e1-hh1 and e2-hh2 excitons are observed. The binding energy and diamagnetic shift agree well for e1-hh1, but a significant discrepancy is noted for e2-hh2. The discrepancy is interpreted in terms of a need for a more complete band structure theory.",

author = "Smith, \{Doran D.\} and M. Dutta and Liu, \{X. C.\} and Terzis, \{A. F.\} and A. Petrou and Cole, \{M. W.\} and Newman, \{P. G.\}",

year = "1990",

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TY - JOUR

T1 - GaAsAlAs quantum well magneto-exciton spectrum - theory and experiment

AU - Smith, Doran D.

AU - Dutta, M.

AU - Liu, X. C.

AU - Terzis, A. F.

AU - Petrou, A.

AU - Cole, M. W.

AU - Newman, P. G.

PY - 1990/4/1

Y1 - 1990/4/1

N2 - A theory is developed for the magnetic field substates of the e1-hh1, and e2-hh2 excitons of a GaAsAlAs quantum well. The theory accounts for the Coulomb potential between the electron and hole, the magnetic field, and the finite width of the quantum well. These results are compared to a direct reflectivity experiment where several magnetic substates of the e1-hh1 and e2-hh2 excitons are observed. The binding energy and diamagnetic shift agree well for e1-hh1, but a significant discrepancy is noted for e2-hh2. The discrepancy is interpreted in terms of a need for a more complete band structure theory.

AB - A theory is developed for the magnetic field substates of the e1-hh1, and e2-hh2 excitons of a GaAsAlAs quantum well. The theory accounts for the Coulomb potential between the electron and hole, the magnetic field, and the finite width of the quantum well. These results are compared to a direct reflectivity experiment where several magnetic substates of the e1-hh1 and e2-hh2 excitons are observed. The binding energy and diamagnetic shift agree well for e1-hh1, but a significant discrepancy is noted for e2-hh2. The discrepancy is interpreted in terms of a need for a more complete band structure theory.

UR - https://www.scopus.com/pages/publications/44949291575

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DO - 10.1016/0039-6028(90)90287-I

M3 - Article

AN - SCOPUS:44949291575

SN - 0039-6028

VL - 228

SP - 184

EP - 187

JO - Surface Science

JF - Surface Science

IS - 1-3

ER -

GaAsAlAs quantum well magneto-exciton spectrum - theory and experiment

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