Local-field effects and birefringence in II-IV-chalcopyrite crystals
- 15 October 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (8) , 3275-3279
- https://doi.org/10.1103/physrevb.12.3275
Abstract
We present a new analysis of the birefringence of chalcopyrite crystals, which uses the irreducible components of the susceptibility and polarizability tensors. This analysis shows that the major part of the crystal birefringence is due to local-field anisotropy rather than to the bond optical anisotropy. Contradictions encountered formerly between the dielectric-theory approach and the molecular-orbital approach are explained.Keywords
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