Critical scaling analysis for displacive-type organic ferroelectrics around ferroelectric transition

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• 作者：L.J. Ding ^{dinglinjie82@126.com}
• 关键词：Ferroelectric transition ; Organic ferroelectrics ; Electrocaloric effect (ECE) ; Critical scaling behavior
• 刊名：Physica A: Statistical Mechanics and its Applications
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：471
• 期：Complete
• 页码：818-824
• 全文大小：1912 K
• 卷排序：471

文摘

The critical scaling behavior of ferroelectric transition in displacive-type organic ferroelectrics is investigated by Green’s function theory. The order of ferroelectric transition and universality are clarified by scaling laws. The scaling equations of hypothesis are proposed to verify the self-consistency and reliability of the critical exponents. A universal curve of electric entropy change −ΔS−ΔS is constructed with rescaling temperature and electric field.