Premium
Characterization of phase transition in new ferroelectric 2‐aminopyridine phosphate crystal
Author(s) -
Hek A.,
Dacko S.,
Czapla Z.,
Cach R.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301900
Subject(s) - ferroelectricity , permittivity , phase transition , electric field , dielectric , condensed matter physics , materials science , phase (matter) , crystal (programming language) , electric susceptibility , analytical chemistry (journal) , chemistry , polarization density , physics , optoelectronics , magnetic field , magnetization , organic chemistry , quantum mechanics , computer science , programming language
The dielectric properties of 2‐APP, a new ferroelectric crystal, were investigated around the ferroelectric phase transition at 103.5 K. The temperature dependence of electric permittivity was measured at dc electric fields up to 1000 kV/m. The electric permittivity was also measured in the paraelectric phase at constant temperature as a function of electric field intensity up to 150 kV/m. The results are discussed in the framework of the classical dielectric state equation and expansion coefficients A , B and C were estimated. It is found that the phase transition is of second order. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)