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High‐Temperature Dielectric Constant of NaCl and KBr
Author(s) -
Economou N. A.,
Sastry P. V.
Publication year - 1964
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.19640060111
Subject(s) - dielectric , relaxation (psychology) , dipole , vacancy defect , debye , potassium , condensed matter physics , potassium bromide , dispersion (optics) , dielectric loss , sodium , chemistry , constant (computer programming) , materials science , nuclear magnetic resonance , analytical chemistry (journal) , inorganic chemistry , physics , optics , chromatography , organic chemistry , optoelectronics , psychology , social psychology , computer science , programming language
Abstract A dispersion of the dielectric constant and associated dielectric loss has been observed in sodium chloride and potassium bromide at high temperatures and radio frequencies. Interpretation of the data in terms of the Debye theory of dipolar relaxation suggests that vacancy pairs are responsible for the phenomenon. The concentration of dipoles is, however, one or two orders of magnitude larger than the expected concentration of vacancy pairs.