Low temperature crystalline phase transition in some elpasolite-hexachlorides
- 1 January 1976
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 72, 565-570
- https://doi.org/10.1039/f29767200565
Abstract
A crystalline phase transition has been observed between room temperature and 77 K in certain members of the series Cs2NaLnCl6(Ln = lanthanide ion). Optical spectroscopy and e.p.r. results are used to define the possible low temperature space groups. The possibility that an order-disorder transformation involving the caesium ions as the cause of this transition is discussed.Keywords
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