Room temperature magnetoelectric coupling study in multiferroic Bi₄NdTi₃Fe_0.7Ni_0.3O₁₅ prepared by a multicalcination procedure

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• 作者：Xiaoqin Chen^a ; ^b ; Jun Xiao^b ; Jun Yao^b ; Zewei Kang^b ; Fujun Yang^b ; ^c ; Xiangbin Zeng^a ; ^{eexbzeng@163.com" class="auth_mail}
• 关键词：Bi5Ti3FeO15 ; Aurivillius phase ; Dielectric ; Ferroelectric ; Magnetoelectric coupling
• 刊名：Ceramics International
• 出版年：June, 2014
• 年：2014
• 卷：40
• 期：5
• 页码：6815-6819
• 全文大小：625 K

文摘

Single-phase Bi₄NdTi₃Fe_0.7Ni_0.3O₁₅ polycrystalline samples were synthesized following a multicalcination procedure. The sample exhibited multiferroic property at room temperature, which was demonstrated by the ferroelectric (2P_r=8.52 渭C/cm², 2E_c=89 kV/cm at applied electric field 110 kV/cm) and magnetic (2M_r=388 m emu/g, 2H_c=689 Oe at applied magnetic field 1.04 T) hysteresis loops. More importantly, magnetoelectric coupling effect is observed from measurements of electrical properties not only under small but also under large electric signal when an external magnetic field is applied. The present results suggest a new candidate for a room temperature multiferroic material with magnetoelectric coupling effect.