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Symmetry Properties of the Planar Antiferrornagnet K 2 NiF 4
Author(s) -
Deonarine S.,
Joshua S. J.
Publication year - 1976
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.2220740226
Subject(s) - antiferromagnetism , paramagnetism , symmetry (geometry) , condensed matter physics , planar , exciton , physics , order (exchange) , materials science , mathematics , geometry , computer graphics (images) , finance , computer science , economics
Using well established group theoretical methods a symmetry analysis is made of magaons and paramagnetic spin waves in antiferromagnetic K 2 NiF 4 . Excitons and single ion transitions are also considered and Selection rules for first‐order transitions are derived.