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Manifestation of k ‐linear term effects on the Zeeman splitting of the A1‐exciton emission lines in ZnO
Author(s) -
Hümmer K.,
Helbig R.,
Baumgärtner M.
Publication year - 1978
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220860211
Subject(s) - exciton , zeeman effect , wurtzite crystal structure , energy level splitting , valence (chemistry) , spectral line , luminescence , perpendicular , photoluminescence , valence band , materials science , atomic physics , condensed matter physics , molecular physics , physics , chemistry , band gap , crystallography , magnetic field , quantum mechanics , optoelectronics , geometry , mathematics , hexagonal crystal system
The magneto‐luminescence spectra of the fourfold n = 1 A‐exciton in ZnO up to H = 5 T are reported. The Zeeman splitting in the configuration H ∥ c , k ⊥ c, E ⊥ c clearly demonstrates the influence of the k ‐linear energy terms allowed for the k ‐components perpendicular to the c ‐axis for T 7 valence bands of the wurtzite structure. The appropriate exciton coupling matrix is calculated. From the comparison with the experimental results the A‐valence band slope C = = 2 × 10 −10 eV cm is calculated.