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RESEARCH PRODUCT

Intrinsic localized excitations in nonlinear lattices: Heuristic explanation for the nature of polar nanoregions?

E. Klotins

subject

PhysicsCondensed matter physicsNonlinear latticeCondensed Matter PhysicsFerroelectricityAtomic and Molecular Physics and OpticsMicroscopic scaleElectronic Optical and Magnetic MaterialsCondensed Matter::Materials ScienceNonlinear systemsymbols.namesakeQuantum mechanicsMetastabilitysymbolsPolarHamiltonian (quantum mechanics)Temperature response

description

The study is addressed to a topical problem of self-localization in condensed state with special emphasis on a class of complex oxides categorized as ferroelectric relaxors. Basically, their anomalous temperature response is associated with the dynamics of microscopic scale polar regions supported by somewhat artificial metastable configurations. A unified approach to the spontaneous emergence and stability of the polar nanoregions is assigned to intrinsic localized excitations in Hamiltonian lattices with nonlinearity and non-Gibbsian statistics as necessary and sufficient ingredients of the theory.

yearjournalcountryeditionlanguage
2010-01-01Physica E: Low-dimensional Systems and Nanostructures
https://doi.org/10.1016/j.physe.2009.06.053