Nonferroelectric aging in the relaxor PbMg13Nb23O3

Eugene V. Colla, M. B. Weissman, P. M. Gehring, Guangyong Xu, Haosu Luo, P. Gemeiner, and Brahim Dkhil
Phys. Rev. B 75, 024103 – Published 4 January 2007

Abstract

Three samples of PbMg13Nb23O3 found to show no abrupt electric-field-driven phase transition to a polarized state are compared to a sample which has such a transition and whose dielectric properties resemble those of other samples previously reported to show that transition. The samples without the field-driven transition have lower kinetic freezing temperatures and lower dielectric constants, and one shows a new transitionlike susceptibility jump at about 180K on cooling in zero field. Nonetheless, in each sample the distinctive spin-glasslike aging of the dielectric susceptibility follows the same aging pattern quantitatively. These results support pictures in which the glassy aging comes from different degrees of freedom than does most of the dielectric response, which is dominated by the orientations of ferroelectriclike polar nanoregions.

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  • Received 4 August 2006

DOI:https://doi.org/10.1103/PhysRevB.75.024103

©2007 American Physical Society

Authors & Affiliations

Eugene V. Colla and M. B. Weissman

  • Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080, USA

P. M. Gehring

  • NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899-8562, USA

Guangyong Xu

  • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA

Haosu Luo

  • Shanghai Institute of Ceramics, Chinese Academy of Sciences, 215 Chengbei Rd., Jiading, Shanghai 201800, China

P. Gemeiner and Brahim Dkhil

  • Laboratoire Structures, Propriétés et Modélisation des Solides, CNRS-UMR 8580 Ecole Centrale Paris, 92295, Châtenay-Malabry cedex, France

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Issue

Vol. 75, Iss. 2 — 1 January 2007

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