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Anomalous behaviour of thermodynamic properties at successive phase transitions in (NH4)3GeF7
Heat capacity, thermal dilatation, susceptibility to hydrostatic pressure and dielectric properties associated with succession of three phase transitions below room temperature in double fluoride salt (NH4)3GeF7 were ...
Heat capacity, thermal expansion and sensitivity to hydrostatic pressure of at successive structural phase transitions
Heat capacity, thermal dilatation, permittivity and sensitivity to external pressure of (NH4)3SiF7 were studied. Due to the absence of cubic phases Pm¯ 3m and Pa¯3, a strong decrease in the total entropy changeP∆Si = 19 ...