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This article is cited in 1 scientific paper (total in 1 paper)
CONDENSED MATTER
Step-by-step first order antiferroelectric-paraelectric
transition induced by frustration and electric field
P. V. Dolganova, E. I. Katsb, V. K. Dolganova a Institute of Solid State Physics, Russian Academy of Sciences
b L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences
Abstract:
In this work we show analytically that even not too strong frustrating
next neighbour interaction strongly affects first order
antiferroelectric-paraelectric transition in an external electric field.
We apply mean-field
Landau theory. In the electric field a single phase transition at
$T_0$ splits
into a step-by-step staircase with a series of intermediate phases.
Unexpectedly enough we found that the equilibrium structures of the
phases differ substantially from structures formed at low temperature
both without field and in field. Polarization of intermediate structures
decreases with temperature in a stepwise manner. Similar step-by-step
transitions can occur also in magnetic materials with frustrating
interaction.
Received: 09.01.2014
Citation:
P. V. Dolganov, E. I. Kats, V. K. Dolganov, “Step-by-step first order antiferroelectric-paraelectric
transition induced by frustration and electric field”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:4 (2014), 218–222; JETP Letters, 99:4 (2014), 191–195
Linking options:
https://www.mathnet.ru/eng/jetpl3662 https://www.mathnet.ru/eng/jetpl/v99/i4/p218
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