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Pressure as a Probe of the Glassy State of Ferroelectrics with Random Site Disorder

Published online by Cambridge University Press:  10 February 2011

G. A. Samara  and
L. V. Hansen
G. A. Samara
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185–1421
L. V. Hansen
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87185–1421
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Abstract

Results on lanthanum-modified lead zirconate-titanates (PLZTs) have revealed a pressure-induced crossover from a normal ferroelectric to a relaxor state and the continuous evolution of the dynamics and energetics of the relaxation process. This crossover appears to be a general feature of soft mode ferroelectrics with random site dipolar impurities or polar nanodomains and results from a large decrease in the correlation radius among polar nanodomains - a unique property of soft mode ferroelectrics.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 499: Symposium DD – High Pressure Materials Research , 1997 , 461
Copyright
Copyright © Materials Research Society 1998

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References

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