Weak- and strong-field magnetooptics of wurtzite CdSe: parameters of quasi-cubic approximation

Excitonic spectra of ultra-thin free plates of hexagonal CdSe in magnetic fields up to 8 T at T=1.7 K have been studied. Fan diagrams were interpreted as containing both “weak-field” (Zeeman splitting and diamagnetic shift) and “strong-field” (inter-Landau-level transitions) information. Two sets, “...

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Published inJournal of crystal growth Vol. 214; pp. 899 - 903
Main Authors Kapustina, A.B, Petrov, B.V, Rodina, A.V, Seisyan, R.P
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2000
Subjects
Band parameters
CdSe
Diamagnetic shift
Exciton magnetooptics
Landau levels
Zeeman effect
Zeeman effect
73.61.Ga
78.20.Ls
Landau levels
Diamagnetic shift
CdSe
Exciton magnetooptics
71.35.Ji
Band parameters
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Summary:Excitonic spectra of ultra-thin free plates of hexagonal CdSe in magnetic fields up to 8 T at T=1.7 K have been studied. Fan diagrams were interpreted as containing both “weak-field” (Zeeman splitting and diamagnetic shift) and “strong-field” (inter-Landau-level transitions) information. Two sets, “bare” and “polaron”, of the wurtzite CdSe band parameters were calculated in the frame of quasi-cubic approximation, using best possibilities of these two regimes of the excitonic magnetooptics. The obtained parameters are: electron-effective mass m e=0.125/0.116 m 0, Luttinger parameters γ 1=1.5/1.7 and γ=0.3/0.4 for polaron/bare hole, magnetic Luttinger parameter κ=−0.63 and electron effective g-factor g e=0.7.
ISSN:0022-0248
1873-5002
DOI:10.1016/S0022-0248(00)00246-3