Magnetic field tuning of the smart materials domain structure

Simon Dorfman; David Fuks; Alex Gordon; Eugene A. Kotomin; Peter Wyder

doi:10.1117/12.316873

20 July 1998 Magnetic field tuning of the smart materials domain structure

Simon Dorfman, David Fuks, Alex Gordon, Eugene A. Kotomin, Peter Wyder

Proceedings Volume 3324, Smart Structures and Materials 1998: Smart Materials Technologies; (1998) https://doi.org/10.1117/12.316873
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

The investigation of the behavior of the ferroelectric phase transition with magnetic field tuning and concentration change is highly attractive owing to the possibility to prepare alloying samples and to predict theoretically the parameters of the magnetic field and concentration response at relatively small concentrations. These parameters may be extracted from the equation of states of the perovskite under investigation in the assumption of the linear response. The study of the movement of the paraelectric-ferroelectric interphase boundary in (Ba,Sr)TiO₃ with concentration change and in constant magnetic fields is provided in the framework of the mean-field theory. The analytical solution for the parameters of motion of the interphase boundary is applied to the calculations of the splitting of domain walls in (Ba,Sr)TiO₃ with the magnetic field tuning for different concentrations of Sr. The calculations are based on the experimental data for the Curie-Weiss constant and for the parameters of the Landau-Ginzburg expression for the free energy.

Citation Download Citation

Simon Dorfman, David Fuks, Alex Gordon, Eugene A. Kotomin, and Peter Wyder "Magnetic field tuning of the smart materials domain structure", Proc. SPIE 3324, Smart Structures and Materials 1998: Smart Materials Technologies, (20 July 1998); https://doi.org/10.1117/12.316873

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