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Magneto‐Luminescence Spectroscopy of Excitonic Transitions in Homoepitaxial GaN Layers
Author(s) -
Yamada Y.,
Sasaki C.,
Yoshida Y.,
Kurai S.,
Taguchi T.,
Sugahara T.,
Nishino K.,
Sakai S.
Publication year - 1999
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/(sici)1521-3951(199911)216:1<27::aid-pssb27>3.0.co;2-t
Subject(s) - diamagnetism , exciton , luminescence , zeeman effect , spectroscopy , photoluminescence , acceptor , condensed matter physics , materials science , biexciton , chemistry , molecular physics , magnetic field , atomic physics , physics , optoelectronics , quantum mechanics
Abstract Excitonic optical properties of homoepitaxial GaN layers have been studied by means of magneto‐luminescence spectroscopy. Under magnetic field perpendicular to the hexagonal c ‐axis, Zeeman splittings and diamagnetic shifts were observed for the luminescence lines due to the radiative recombination of excitons bound to neutral donors and acceptors. The effective g ‐factors for both the donor‐ and acceptor‐bound excitons were estimated to be 2.02 and 2.47, respectively. The diamagnetic shift of the donor‐bound exciton was found to be smaller than that of the acceptor‐bound exciton.