Dielectric Response Spectrum of a Damped One- Dimensional Double-Well Oscillator

Authors

John W. Flocken, University of Nebraska at Omaha
R. A. Guenther, University of Nebraska at Omaha
John R. Hardy, University of Nebraska-Lincoln
L. L. Boyer, U.S. Naval Research Laboratory, Washington, D.C.

Document Type

Article

Publication Date

12-15-1989

Publication Title

Physical Review B

Volume

40

Issue

17

Abstract

The characteristic features of the dielectric response spectrum associated with the condensation of a "soft" phonon mode during a ferroelectric phase transition can be reproduced by an oscillator moving in a damped linear double-well potential. The behavior of the response function below the transition temperature T, can be simulated by introducing a linear mean-field coupling which destroys the symmetry of the well. Potentials derived from physically realistic parameters are shown to result in dielectric responses which are in order-of-magnitude agreement with experimental values.

Comments

Published in Physical Review B Volume 40, Number 17, 15 December 1989-I. Copyright © 1989 The American Physical Society. Used by permission.

Recommended Citation

Flocken, John W.; Guenther, R. A.; Hardy, John R.; and Boyer, L. L., "Dielectric Response Spectrum of a Damped One- Dimensional Double-Well Oscillator" (1989). Physics Faculty Publications. 19.
https://digitalcommons.unomaha.edu/physicsfacpub/19