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An analysis of models for the ionic conductivity of silver chloride
Author(s) -
Coerish J.,
Jacobs P. W. M.
Publication year - 1975
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.2220670125
Subject(s) - conductivity , brillouin zone , ionic conductivity , electrical resistivity and conductivity , condensed matter physics , materials science , ionic bonding , schottky diode , thermodynamics , silver chloride , debye model , debye , ion , chemistry , physics , quantum mechanics , electrode , optoelectronics , organic chemistry , diode , electrolyte
Abstract The high‐temperature conductivity of pure AgCl has been re‐examined with a view to establishing more precisely the mobility parameters for non‐collinear interstitialcy motion of Ag + interstitials. The possible roles of direct interstitial jumps, Schottky defects, and temperature dependent activation energies has been assessed. Fomulae are given for the activity coefficients of interstitials and vacancies evaluated to O(x 2 ) in an approximation that uses a sphericalized Brillouin zone and inlcudes only the cycle sum contributions. These activity coefficients are compared with those evaluated from the Debye‐Hückel formula and their effect on the defect parameters obtained from conductivity data is assessed.