R.D. Murphy, R.O. Watts
Journal of Low Temperature Physics
Equilibrium properties and collective excitations are studied for a simplified microscopic model of ferroelectricity. The q=0 mode changes in character from a rest-strahl mode at T=0 to a tunnelling mode at T>Tc, and shows the correct Cochran behavior in the transition region. © 1966.
R.D. Murphy, R.O. Watts
Journal of Low Temperature Physics
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