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Zeitschrift für Kristallographie - Crystalline Materials

Editor-in-Chief: Pöttgen, Rainer

Ed. by Antipov, Evgeny / Boldyreva, Elena V. / Friese, Karen / Huppertz, Hubert / Jahn, Sandro / Tiekink, E. R. T.

IMPACT FACTOR 2018: 1.090
5-year IMPACT FACTOR: 2.159

CiteScore 2018: 1.47

SCImago Journal Rank (SJR) 2018: 0.892
Source Normalized Impact per Paper (SNIP) 2018: 0.722

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Volume 229, Issue 3


Pressure evolution of PbMg1/3Nb2/3O3 relaxor ferroelectric

Dmitry Chernyshov / Vadim Dyadkin / Vladimir Dmitriev / Alexey Bossak
Published Online: 2014-01-07 | DOI: https://doi.org/10.1515/zkri-2013-1642


Diffuse and Bragg scattering of synchrotron radiation on single crystal PMN relaxor has been collected as a function of pressure. The relaxor-specic diffuse scattering (DS) is observed for p < 40 kbar and successfully parametrized with the thermal DS-like model of polar correlations. An increase of pressure does suppress the polar correlations in a specic glass-like relaxor state, and above ~40 kbar a new non-polar R-phase becomes stable. We propose a phenomenological model accounting for off-center displacements of lead ions; together with previous reports these findings map the relaxor state to a specifc area of phase diagram.

Keywords: Relaxor ferroelectrics; diffuse scattering; Landau theoryn

About the article

Received: 2013-04-09

Accepted: 2013-10-30

Published Online: 2014-01-07

Published in Print: 2014-03-01

Citation Information: Zeitschrift für Kristallographie – Crystalline Materials, Volume 229, Issue 3, Pages 223–229, ISSN (Online) 2196-7105, ISSN (Print) 2194-4946, DOI: https://doi.org/10.1515/zkri-2013-1642.

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© 2014 by Walter de Gruyter Berlin Boston. This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. BY-NC-ND 4.0

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