Dielectric Response in Microscopically Heterogeneous Dielectrics: Example of KTaO3:Nb
S. Prosandeev, V. Trepakov, S. Kapphan, M. Savinov
Abstract
New experimental data on solid solutions of quantum paraelectrics with KTaO3:Nb as an example are considered within a framework of a quantum theory of ferroelectric phase transitions. In order to describe the effect of local heterogeneities a percolation type theory together with a random field approach were employed.
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