Nanoscale clusters in solid solutions of ferroelectrics in the framework of a six-well model

S. A. Prosandeev Physics department, Rostov State University, 5 Zorge Str., 344090, Rostov-on-Don, Russia

A. E. Maslennikov Physics department, Rostov State University, 5 Zorge Str., 344090, Rostov-on-Don, Russia

V. S. Vikhnin A.F. Ioffe Physical-Technical Institute, 194021, St. Petersburg, Russia

S. Kapphan Fachbereich Physik, University of Osnabrueck, 49069, Osnabrueck, Germany

Abstract

A model of phase transitions in solid solutions of incipient ferroelectrics has been developed. The novel feature of the model is considering the impurities being aligned in an extended internal electric field produced by randomly oriented nanoscale percolative clusters. The phase transition is of the first kind and there exists a critical point in an external electric field.

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Nanoscale clusters in solid solutions of ferroelectrics in the framework of a six-well model

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Nanoscale clusters in solid solutions of ferroelectrics in the framework of a six-well model

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