Time and frequency-dependence of the electric field-induced phase transition in BaTiO3-BiZn1/2Ti1/2O3

Thanakorn Iamsasri, Giovanni Esteves, Hyeokmin Choe, Marco Vogt, Sasiporn Prasertpalichat, David P. Cann, Semën Gorfman, Jacob L. Jones

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

תקציר

The time and frequency dependence of the electric field-induced phase transition in BaTiO3-BiZn1/2Ti1/2O3 was studied using in situ X-ray diffraction. The kinetics of the field-induced phase transition between cubic and tetragonal phases was described using a modified Kolmogorov-Avrami-Ishibashi (KAI) equation. Unlike previous works, for which some assumptions (e.g., unimodal and Gaussian) on the distribution of transition rates are needed, the present work utilized Bayesian inference and a Markov chain Monte Carlo algorithm to obtain the distribution of transition rates empirically without a priori assumption on the distribution. The results show that the transition rate coefficient increases as the frequency of applied field increases. The mean value of exponent n in the modified-KAI equation was close to 1, implying that the field-induced phase transition is site saturated and the growth of the induced phase occurred primarily from the surface.

שפה מקוריתאנגלית
מספר המאמר064104
כתב עתJournal of Applied Physics
כרך122
מספר גיליון6
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 14 אוג׳ 2017

ASJC Scopus subject areas

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טביעת אצבע

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