SPECIFIC HEAT ANOMALY IN THE NEIGHBOURHOOD OF A FERRO-PARAELECTRIC TRANSITIONS

Issue		J. Phys. Colloques Volume 33, Number C2, Avril 1972 2^e CONGRÈS EUROPÉEN DE FERROÉLECTRICITÉ


Page(s)		C2-94 - C2-96
DOI		http://dx.doi.org/10.1051/jphyscol:1972229

2^e CONGRÈS EUROPÉEN DE FERROÉLECTRICITÉ

J. Phys. Colloques 33 (1972) C2-94-C2-96
DOI: 10.1051/jphyscol:1972229

SPECIFIC HEAT ANOMALY IN THE NEIGHBOURHOOD OF A FERRO-PARAELECTRIC TRANSITIONS

M. BERNARD, J. PERRIGOT, M. RICHARD and L. EYRAUD

Laboratoire de Ferroélectricité, INSA, 20, avenue Albert-Einstein, 69, Villeurbanne, France

Abstract
We report our measurements of specific heat variations versus temperature in the neighbourhood of ferro-paraelectric transitions. Two typical exemples have been chosen : T. G. S. for second order transition and PbTiOs for first order transition. The occurrence of a thermal hysteresis in the second case is used to evaluate the latent heat associated with the transition.

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