Paraelectric and ferroelectric order in two-state dipolar fluids

Dmitry V. Matyushov; Andriy Okhrimovskyy

doi:10.1063/1.1917817

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arXiv · cond-mat/0503623

Paraelectric and ferroelectric order in two-state dipolar fluids

Dmitry V. Matyushov·Andriy Okhrimovskyy

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Abstract

Monte Carlo simulations are used to examine cooperative creation of polar state in fluids of two-state particles with nonzero dipole in the excited state. With lowering temperature such systems undergo a second order transition from nonpolar to polar, paraelectric phase. The transition is accompanied by a dielectric anomaly of polarization susceptibility increasing by three orders of magnitude. The paraelectric phase is then followed by formation of a nematic ferroelectric which further freezes into an fcc ferroelectric crystal by a first order transition. A mean-field model of phase transitions is discussed.

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Dmitry V. Matyushov, Andriy Okhrimovskyy. 2005-03-25. Paraelectric and ferroelectric order in two-state dipolar fluids. https://doi.org/10.1063/1.1917817

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