Third-order invariants in phase transitions in crystals
- 1 January 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 13 (1) , 213-214
- https://doi.org/10.1103/physrevb.13.213
Abstract
A proof is given of Landau's assertion that second-order phase transitions cannot occur in crystals for the case of symmetry changes which change the order of the covering group by a factor of 3.Keywords
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