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Ionic conductivity of BaFCl
Author(s) -
Somaiah K.,
Hari Babu V.
Publication year - 1983
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.2221170107
Subject(s) - impurity , ionic conductivity , doping , conductivity , schottky defect , materials science , ion , ionic bonding , thermal conduction , halide , chemistry , inorganic chemistry , schottky diode , optoelectronics , electrolyte , electrode , organic chemistry , diode , composite material
The ionic conductivity of undoped and doped BaFCl single crystals is measured. In BaFCl, the measurements are performed parallel and perpendicular to the crystallographic c ‐axis. Incorporation of monovalent impurities (Tl, Na) enhances the conductivity while it decreases by doping with trivalent impurities (Gd). The results indicate that BaFCl has anionic conduction via halide ion vacancies and that the thermally generated lattice defects are of Schottky type. The probable mechanism for the conduction process in these crystals is discussed on the basis of structural considerations of the unit cell.