MONTE-CARLO SIMULATIONS OF PECULARITIES OF PHASE TRANSITIONS IN FERROELECTRIC MICROCRYSTALS OF DIFFERENT SHAPES

Authors

  • О. В. Дробнич Zakarpatsky State University, Ukraine
  • Ю. Ю. Плакош Zakarpatsky State University, Ukraine
  • В. В. Ковтун Zakarpatsky State University, Ukraine
  • В. Г. Цукур Zakarpatsky State University, Ukraine
  • О. В. Темнов Zakarpatsky State University, Ukraine

DOI:

https://doi.org/10.24144/2415-8038.2007.21.140-144

Abstract

A dipole model was developed for Monte-Carlo calculations of phase behavior of needle-shaped ferroelectric Sn2P2S6 microcrystals. Numerical experiments have shown that the phase behavior of such microcrystals approaches the phase behavior of a macroscopic crystal at sufficiently big prolongation along the dipole axis. There is a lower limit of the prolongation below which the modulated phase becomes the basic state of the dipole configuration. The developed algorithm of calculations was also used for calculation of Lorenz factor for models with an approximated account of dipole-dipole long-range interactions.

References

I. M. Voynarovych, A. V. Gomonnai, A. M. Solomon, Yu. M. Azhniuk, A. A. Kikineshi, V. P. Pinzenik, M. Kis-Varga, L . Daroczy, V. V. Lopushansky, J. Opto- electron. Adv. Mater. 5, 713 (2003).

E. Mishina, K. Vorotilov, V. Vasil'ev, A. Sigov, N. Ohta, S. Nakabayashi, JETF, 95, 502 (2002).

F. D. Morrison, Y. Luo, I. Szafraniak, V. Nagarajan, R. B. Wehrspohn, M. Steinhart, J. H. Wendroff, N. D. Zakharov, E. D. Mishina, K. A. Vorotilov, A. S. Sigov, S. Nakabayashi, M. Alexe, R. Ramesh, J. F. Scot, RAMS e-journal, 4, 2 (2003).

G. R. Fox, F. Chu, T. Davenport, J. Vac. Sci. Tech. B 19, 1967 (2001).

Ю. М.Высочанский, В. Ю. Сливка, Сегнетоэлектрики семейства Sn2P2S6. Свойства в окрестности точки Лифшица. (Львов, 1994).

A.Drobnich, Yu.Vysochanskii, Condensed Matter Physics 1, 331 (1998).

A.Drobnich, Yu.Vysochanskii, Ferroelectrics 226, 37 (1999).

A.Drobnich, Yu.Vysochanskii, Ferroelectrics 233, 145 (1999).

Downloads

Published

2007-08-05

Issue

Vol. 21 (2007)

Section

Статті

License

Copyright (c) 2007 Scientific Herald of Uzhhorod University.Series Physics

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors who publish with this journal agree to the following terms:
    1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
    2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
    3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).