The origin of the structural phase transition in Gd2(MoO4)3
- 1 May 1971
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 45 (1) , 147-152
- https://doi.org/10.1002/pssb.2220450115
Abstract
The phase transition in Gd2(MoO4)3 at 159 °C is investigated on the base of symmetry changes using standard group‐theoretical methods. It is shown that a two‐dimensional representation exists with k = 1/2 (b1 + b2) which induces a symmetry change from Dd to Cv and could be responsible for the phase transition. The appropriate form of the free energy is developed and compared with that proposed by Levanyuk and Sannikov [1].Keywords
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