Investigation of Temperature-Driven Ferroelectric Phase-Transition via Modified Heisenberg Model:The Monte Carlo Simulation
This work studies the temperature-driven ferroelectric phase-transition of ferroelectric polarization under the absence of electric field.The modified Heisenberg model in three dimensions was considered and simulated via Monte Carlo simulation.The Metropolis algorithm and the periodic boundary condition were employed.The dependence of electric polarization on temperature was investigated to define the ferroelectric phases and their structural phase transitions.From the results, with well-defined set of relevant temperature parameters, the phase-dependent polarization-behavior was found with a sudden change in its behaviors at the transition points.The structure factors were also considered and supported these phase changes.This conclusively pinpointed the important of temperature-dependent parameters in modeling ferroelectric materials.
Ferroelectrics Heisenberg Model Monte Carlo simulation Phase Transition
Sittidet Srinoi Yongyut Laosiritaworn
Department of Physics and Materials Science,Faculty of Science,Chiang Mai University,Chiang Mai 50200,Thailand
国际会议
香港
英文
315-318
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）