Phase Transitions in Ferroelastic RbIn(MoO 4 ) 2 at 163 and 143 K.

The paper presents results of studies on phase transitions in RbIn(MoO4)2at 163 and 143 K obtained using the electron paramagnetic resonance and polarised light microscopy. It has been found that the ferroelastic phase transition observed around 143 K is split into two closely situated transitions separated by a temperature interval of around 0.2 K. It has been found that these phases coexist in a temperature range of few dozen degrees. [ABSTRACT FROM AUTHOR]