DIELECTRIC ANOMALIES IN IMPROPER FERROELECTRIC MN(3)B(7)O(13)X BORACITES

Citation
Agc. Guzman et al., DIELECTRIC ANOMALIES IN IMPROPER FERROELECTRIC MN(3)B(7)O(13)X BORACITES, Revista Mexicana de Fisica, 40(6), 1994, pp. 911-922
Citations number
46
Categorie Soggetti
Physics
Journal title
ISSN journal
0035001X
Volume
40
Issue
6
Year of publication
1994
Pages
911 - 922
Database
ISI
SICI code
0035-001X(1994)40:6<911:DAIIFM>2.0.ZU;2-V
Abstract
The temperature and frequency dependence of the permittivity in some h alogen boracites has been measured in the polar and non polar phases. Mn3B7O13Cl showed the typical dielectric anomaly of most boracites whe reas Mn3B7O13I and Mn3B7O13Br exhibited a different dielectric behavio r. The results are discussed using a phenomenological theory of the im proper ferroelectric phase transition in these compounds.