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Optical Selection Rules for Hexagonal GaN
Author(s) -
Tronc P.,
Kitaev Yu.E.,
Wang G.,
Limonov M.F.,
Panfilov A.G.,
Neu G.
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<599::aid-pssb599>3.0.co;2-h
Subject(s) - brillouin zone , exciton , hexagonal crystal system , homogeneous space , selection (genetic algorithm) , condensed matter physics , physics , mathematics , chemistry , crystallography , computer science , geometry , artificial intelligence
We determined the possible symmetries for band (Bloch) states at various points of the Brillouin zone. The spin–orbit interaction has been taken into account. Free excitons offer larger sets of possible state symmetries than single carriers do. The selection rules for the optical transitions have been established. Experiments with polarized light are shown to be relevant to study the nature (s or p) of A, B, and C excitons.