Loss of relaxor properties due to dipolar interactions in ferroelectrics: A 2D Monte Carlo study | Zendy

GarcíaZaldívar O. | Zendy; DíazMéndez R. | Zendy; CalderónPiñar F. | Zendy; PeláizBarranco A. | Zendy

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Loss of relaxor properties due to dipolar interactions in ferroelectrics: A 2D Monte Carlo study

Author(s) -

GarcíaZaldívar O.,

DíazMéndez R.,

CalderónPiñar F.,

PeláizBarranco A.

Publication year - 2012

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201248003

Subject(s) - condensed matter physics , monte carlo method , dielectric , dipole , permittivity , materials science , anisotropy , ferroelectricity , polar , projection (relational algebra) , dielectric permittivity , relaxor ferroelectric , dielectric response , statistical physics , physics , optics , mathematics , quantum mechanics , optoelectronics , statistics , algorithm

The behavior of the dielectric response in relaxor ferroelectric materials is studied by means of Monte Carlo simulations of a simple two‐dimensional (2D) generic model. It is showed that the shifting with the frequency of the peak of the temperature dependence of the dielectric permittivity ε can be obtained just by considering a randomly distributed pinning anisotropy for the out‐plane projection of the polar nanoregions. It is also showed that the consideration of a weak long‐range dipolar interaction between nanodomains continuously drives the system to a non‐relaxor ferroelectric state in which a single peak is observed for the dielectric permittivity.

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