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Ferroelectrics Volume 302, 2004 - Issue 1
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Original Articles

Dynamics of Polar Nanoregions in Relaxors

J. TOULOUSE Physics Department Lehigh University, Bethlehem, PA, 18015, USA
,
D. LA-ORAUTTAPONG Physics Department Lehigh University, Bethlehem, PA, 18015, USA
&
O. SVITELSKIY Physics Department Lehigh University, Bethlehem, PA, 18015, USA
Pages 271-277 | Received 01 Aug 2003, Accepted 01 Jan 2004, Published online: 08 Sep 2010
 
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Abstract

We propose a general framework for the description and understanding of the polarization dynamics in relaxors. This framework is based on the two time-scale motion of off-center ions within polar nanoregions and the increasing restrictions placed on this motion with decreasing temperature. Four general stages are identified.

Acknowledgements

Special thanks to Z. G. Ye and L. A. Boatner for the PMN, PZN and KTN crystals.

This work was made possible by a grant from the US Department of Energy, DE-FG02-00ER45842.

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