Multiferroic property, dielectric response, and scaling behavior in Aurivillius Bi_4.25Gd_0.75Fe_0.5Co_0.5Ti₃O₁₅ ceramic

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• 作者：X.Z. Zuo^a ; ^{zxz1003@mail.ustc.edu.cn} ; M.L. Zhang^a ; E.J. He^a ; J. Yang^b ; X.B. Zhu^b ; J.M. Dai^b
• 关键词：Aurivillius ; Multiferroic ; Dielectric relaxation ; Scaling ; Behavior
• 刊名：Journal of Alloys and Compounds
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：695
• 期：Complete
• 页码：2556-2562
• 全文大小：2284 K
• 卷排序：695

文摘

XPS results indicate the Co ions exist in the form of both 2+ and 3+. The substitution of Gd3+ can effectively enhance the ferromagnetic property. The magnetic and ferroelectric Curie temperature is 370 K and 1088 K, respectively. Four thermally activated dielectric relaxations in 10 K–1000 K are observed. Scaling behavior implies the dynamic process of electron is temperature independent.