Annotation
A phenomenological model that describes the sequence of phase transitions in lawsonite is considered. A phase diagram of the model is constructed and theoretical temperature dependences of order parameters and inverse permittivity in low-symmetry phases are calculated. The comparison of theoretical curves with experimental results showed satisfactory qualitative agreement.
Received: 2012 October 10
Approved: 2013 March 27
PACS:
77.80.Bh Phase transitions and Curie point
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
S.V. Pavlov
Faculty of Physics, Moscow State University, Moscow, 119991, Russia
Faculty of Physics, Moscow State University, Moscow, 119991, Russia