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Dipolar Relaxation Induced by an AC Field in Various Crystallographic Directions of Me 2+ ‐Doped Alkali Halide Crystals. I. Nearest‐Neighbour Approach
Author(s) -
Poźniak J.
Publication year - 1978
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.2220890230
Subject(s) - alkali metal , vacancy defect , halide , dipole , chemistry , relaxation (psychology) , doping , lattice (music) , electric field , field (mathematics) , crystallography , condensed matter physics , inorganic chemistry , physics , social psychology , psychology , mathematics , organic chemistry , quantum mechanics , acoustics , pure mathematics
Theoretical analysis of the relaxation of Me 2+ –cation vacancy dipoles in NaCl‐type alkali halide crystals in an ac electric field acting along 〈110〉 or 〈111〉 crystallographic direction is carried out. There is also analyzed the possibility of calculating the rotational jump probabilities for lattice cation‐cation vacancy (ω 1 ) and for direct exchange Me 2+ ‐cation vacancy (ω 2 ), on the basis of the experimental data of tan δ = F (ω) measurements.