Abstract
From symmetry considerations and using generalized Onsager relations, it is shown that 66 of the 90 magnetic classes, consisting of 29 single colour and 37 double colour ones, can exhibit what may be called the strain gyrotropic rotation. Similarly, 69 of the 90 magnetic classes, consisting of 21 single colour and 48 double colour ones, can exhibit what may be called the strain gyrotropic birefringence. A crystal in the class m3 or m3m is interesting as it can exhibit strain gyrotropic rotation despite its being cubic and incapable of exhibiting gyrotropic rotation in the unstressed state. Similarly, a crystal in the classm3m, is interesting as it can exhibit strain gyrotropic birefringence despite its being cubic and incapable of exhibiting gyrotropic birefringence in the unstressed state.
Similar content being viewed by others
References
Bhagavantam, S...Materials Res. Bull., 1969,4, 477.
—Crystal Symmetry and Physical Properties, 1966, Academic Press London.
Ramaseshan, S. and Ranganath, G. S.Physics of the Solid State, 1969, Academic Press, London.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bhagavantam, S. Optical properties of magnetic crystals. Proc. Indian Acad. Sci. 73, 269–274 (1971). https://doi.org/10.1007/BF03049428
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF03049428