Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

A. S. Emelyanov; Eugene V. Colla; I. P. Raevski; J-L. Dellis; L. Jastrabik; M. El Marssi; S. A. Prosandeev; S. P. Kapphan

arxiv: cond-mat/0410103 · v1 · submitted 2004-10-05 · ❄️ cond-mat.mtrl-sci

Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

S. A. Prosandeev , I. P. Raevski , A. S. Emelyanov , Eugene V. Colla , J-L. Dellis , M. El Marssi , S. P. Kapphan , L. Jastrabik This is my paper

classification ❄️ cond-mat.mtrl-sci

keywords dielectricbiasdependencepermittivitystiffnessconcentrationscrystalsdipole

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Dielectric permittivity and Second Harmonic Generation (SHG) studies in the field-cooled mode show a linear dependence of dielectric stiffness (inverse dielectric permittivity) on dc bias in PMN-PT crystals and SHG intensity in KTaO$_{3}$:Li at small Li concentrations. We explain this unusual result in the framework of a theory of transverse, hydrodynamic-type, instability of local polarization.

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Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

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