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Interatomic force constants in A II B IV C V 2 chalcopyrite compounds
Author(s) -
Neumann H.
Publication year - 1989
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170240612
Subject(s) - chalcopyrite , chemistry , lattice constant , crystallography , force constant , bond length , chemical bond , analytical chemistry (journal) , copper , crystal structure , molecule , physics , organic chemistry , diffraction , chromatography , optics
Force constants of the A II C V and B IV C V bonds in the A II B IV C V 2 compounds with chalcopyrite structure are estimated from experimental lattice vibration data using a simplified version of the Keating model. It is shown that the force constants depend exponentially on the bond length. The parameters of this relation are practically the same as those found for the A IV A IV , A III B V and A II B VI bonds in the elemental semiconductors and binary compounds and for the B III C VI bond in the A I B III C VI 2 semiconductors.