Physical Inorganic Chemistry
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ChemInform Abstract: Vacancy Ordering in Y1-xSe.
First published: January 10, 1989
Abstract
Nonstoichiometric yttrium monoselenide exhibits an order-disorder transition (at 275 °C for Y0.78Se).
ChemInform Abstract
Nonstoichiometric yttrium monoselenide exhibits an order-disorder transition (at 275 °C for Y0.78Se). Y1-xSe crystallizes in the NaCl-type above 275 °C and a defect ordered superstructure is observed below 275 °C. The ordered superstructure has cubic symmetry (most probably space group Fd3m) with twice the NaCl-type a parameter.
