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On the Influence of Conduction Electrons on the Ferroelectric Curie Temperature
Author(s) -
Hallers J. J.,
Caspers W. J.
Publication year - 1969
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.19690360221
Subject(s) - curie temperature , condensed matter physics , electron , ferroelectricity , thermal conduction , dielectric , limiting , ion , materials science , curie constant , wavelength , curie , fermi gas , curie–weiss law , physics , quantum mechanics , optoelectronics , ferromagnetism , engineering , composite material , mechanical engineering
The frequency dependence of the transverse optical mode in the long‐wavelength limit on the density of conduction electrons is calculated. This dependence is a consequence of the dielectric properties of the free electron gas which gives a change of the effective ion‐ion interaction. By putting the limiting frequency equal to zero one finds an equation for the ferroelectric Curie temperature.