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Title: Size-driven relaxation and polar states in PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}-based system

Abstract

Nanocrystalline powders and ceramics with controlled grain size from 15 to 3000 nm of PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}(PMN) and (PMN){sub 0.65}-(PbTiO{sub 3}){sub 0.35} (PMN-PT35) have been synthesized using the ball milling method. Dielectric experiments have revealed in PMN a disappearance of relaxation below {approx_equal}30 nm grain size and combined x-ray and Raman experiments the vanishing of correlations between polar nanoregions (PNRs). A similar study in morphotropic compound PMN-PT35 has shown the appearance of a relaxor state below {approx_equal}200 nm, associated to a destruction of the ferroelectric domains state towards PNRs in a paraelectric matrix. These phenomena are discussed in connection with pressure experiments from the literature and on the basis of polar states destabilization by both elastic and electric random fields changes associated with the size reduction.

Authors:
; ; ;  [1];  [1];  [2]; ;  [3]
  1. Laboratoire Structures, Proprietes et Modelisation des Solides, Ecole Centrale Paris, Grande Voie des Vignes 92295 Chatenay-Malabry Cedex (France)
  2. (France)
  3. Jozef Stefan Institute, Jamova 39, 1001 Ljubljana (Slovenia)
Publication Date:
OSTI Identifier:
20719781
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 72; Journal Issue: 17; Other Information: DOI: 10.1103/PhysRevB.72.174115; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CERAMICS; CORRELATIONS; CRYSTALS; FERROELECTRIC MATERIALS; GRAIN SIZE; LEAD COMPOUNDS; MILLING; NANOSTRUCTURES; POWDERS; RAMAN SPECTRA; RANDOMNESS; RELAXATION; TITANATES; X RADIATION; X-RAY DIFFRACTION

Citation Formats

Carreaud, J., Gemeiner, P., Dkhil, B., Bogicevic, C., Kiat, J.M., Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette Cedex, Rojac, T., and Malic, B. Size-driven relaxation and polar states in PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}-based system. United States: N. p., 2005. Web. doi:10.1103/PhysRevB.72.174115.
Carreaud, J., Gemeiner, P., Dkhil, B., Bogicevic, C., Kiat, J.M., Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette Cedex, Rojac, T., & Malic, B. Size-driven relaxation and polar states in PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}-based system. United States. doi:10.1103/PhysRevB.72.174115.
Carreaud, J., Gemeiner, P., Dkhil, B., Bogicevic, C., Kiat, J.M., Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette Cedex, Rojac, T., and Malic, B. Tue . "Size-driven relaxation and polar states in PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}-based system". United States. doi:10.1103/PhysRevB.72.174115.
@article{osti_20719781,
title = {Size-driven relaxation and polar states in PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}-based system},
author = {Carreaud, J. and Gemeiner, P. and Dkhil, B. and Bogicevic, C. and Kiat, J.M. and Laboratoire Leon Brillouin, CE Saclay, 91191 Gif-sur-Yvette Cedex and Rojac, T. and Malic, B.},
abstractNote = {Nanocrystalline powders and ceramics with controlled grain size from 15 to 3000 nm of PbMg{sub 1/3}Nb{sub 2/3}O{sub 3}(PMN) and (PMN){sub 0.65}-(PbTiO{sub 3}){sub 0.35} (PMN-PT35) have been synthesized using the ball milling method. Dielectric experiments have revealed in PMN a disappearance of relaxation below {approx_equal}30 nm grain size and combined x-ray and Raman experiments the vanishing of correlations between polar nanoregions (PNRs). A similar study in morphotropic compound PMN-PT35 has shown the appearance of a relaxor state below {approx_equal}200 nm, associated to a destruction of the ferroelectric domains state towards PNRs in a paraelectric matrix. These phenomena are discussed in connection with pressure experiments from the literature and on the basis of polar states destabilization by both elastic and electric random fields changes associated with the size reduction.},
doi = {10.1103/PhysRevB.72.174115},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 17,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}