Study of ferroelectric phase transitions in disordered PbSc1/2Nb1/2O3 and PbSc1/2Ta1/2O3 solid solutions |
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Authors: | N. G. Zamkova S. N. Sofronova V. I. Zinenko |
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Affiliation: | (1) Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia |
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Abstract: | Ferroelectric phase transitions and thermodynamic properties of disordered PbSc1/2Ta1/2O3 and PbSc1/2Nb1/2O3 solid solutions have been investigated by the Monte Carlo method. The parameters of the effective Hamiltonian were calculated within the generalized Gordon-Kim model. The obtained values of the phase-transition temperatures and spontaneous polarization are in satisfactory agreement with the experimental data. |
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