Polaron Zeeman effect in GaAs/Al sub x Ga sub 1 minus x As multiple-quantum-well structures
Journal Article
·
· Physical Review (Section) B: Condensed Matter; (USA)
- Department of Physics, National Taiwan University, Taipei, Taiwan, Republic of China (TW)
A three-level (1{ital s}, 2{ital p}{sup +}, and 2{ital p}{sup {minus}} donor states) Wigner-Brillouin perturbation theory is used to study the resonant polaron Zeeman effect for an impurity placed at the center of a GaAs/Al{sub {ital x}}Ga{sub 1{minus}{ital x}}As quantum-well structure in the presence of magnetic field. The resonant splitting caused by the polaron coupling between 1{ital s} and 2{ital p}{sup +} states and 2{ital p}{sup {minus}} and 2{ital p}{sup +} states as a function of well width is calculated. The results agree with experimental data if the GaAs LO-phonon energy is lowered to 250 cm{sup {minus}1}, which is believed to be caused by the zone folding of LO phonons in multiple-quantum-well structures.
- OSTI ID:
- 5683079
- Journal Information:
- Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:6; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
DOPED MATERIALS
ELECTRONIC STRUCTURE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
MAGNETIC FIELDS
MATERIALS
NUCLEAR POTENTIAL
PERTURBATION THEORY
PNICTIDES
POLARONS
POTENTIALS
QUASI PARTICLES
SQUARE-WELL POTENTIAL
ZEEMAN EFFECT
360602* -- Other Materials-- Structure & Phase Studies
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
DOPED MATERIALS
ELECTRONIC STRUCTURE
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
MAGNETIC FIELDS
MATERIALS
NUCLEAR POTENTIAL
PERTURBATION THEORY
PNICTIDES
POLARONS
POTENTIALS
QUASI PARTICLES
SQUARE-WELL POTENTIAL
ZEEMAN EFFECT