title: First order phase transition in deuterated triglycine selenate under an electric field: experimental study and analysis in the frame of Landau theory.
abstract: The influence of electric fields lower than the critical field in the ferroelectric phase transition in deuterated triglycine selenate has been studied by means of thermal and dielectric properties. The latent heat, specific heat and dielectric constant have been measured and compared to the theoretical expectations from the Landau theory under an electric field. A full agreement has been found on cooling experiments.
authors.affiliation: Departamento de Física de la Materia Condensada, Instituto Mixto de Ciencia de Materiales CSIC-Universidad de Sevilla, Apartado 1065, 41080 Sevilla, Spain.
authors.forename: F J
authors.initials: FJ
authors.lastname: Romero
authors.forename: M C
authors.initials: MC
authors.lastname: Gallardo
authors.forename: J
authors.initials: J
authors.lastname: Del Cerro