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Number of results

Journal

2011 | 9 | 2 | 438-445

Article title

Polar nanoregions in Pb(Mg1/3Nb2/3)O3 (PMN): insights from a supercell approach

Content

Title variants

Languages of publication

EN

Abstracts

EN
We report construction of a model of polar nanoregions in the PMN relaxor ferroelectric based on first-principles lattice dynamics for chemically ordered supercells [S.A. Prosandeev et al., Phys. Rev. B 70, 134110 (2004)], combined with invariance under permutations and dipole-dipole interaction as a source supporting randomly oriented residual polarization. Representative analytical estimates of polar nanore-gion - supercell mapping reproduce both nonzero local and zero macroscopic polarization of the structure, as well as the temperature change of the supercell anisotropy at cooling and field cooling.

Keywords

Publisher

Journal

Year

Volume

9

Issue

2

Pages

438-445

Physical description

Dates

published
1 - 4 - 2011
online
20 - 2 - 2011

Contributors

author
  • Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia
author
  • Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia
  • Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia
author
  • Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., Riga, LV-1063, Latvia

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-010-0144-3
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