Investigation of the magnetoelectric effect in BiFeO3-BaTiO3 solid solutions

被引：76

作者：

Kumar, MM ^{[1
]}

Srinivas, A ^{[1
]}

Kumar, GS ^{[1
]}

Suryanarayana, SV ^{[1
]}

机构：

[1] Osmania Univ, Dept Phys, Hyderabad 500007, Andhra Pradesh, India

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 41期

关键词：

D O I：

10.1088/0953-8984/11/41/315

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

BiFeO3 forms solid solutions with BaTiO3, over the entire compositional range, with different crystal symmetries. Magnetoelectric (ME) measurements carried out with a superimposed alternating-current magnetic field, together with a time-varying direct-current magnetic field in isothermal conditions, indicated non-linearity. The peak observed coincided with a metamagnetic transition in the magnetization data. Rather than the spin flop reported earlier, it is a gradual reorientation of spins towards the field direction that destroys the spiral spin arrangement. With increasing content of BaTiO3, a quadratic signal was observed, indicating the structural dependence of the magnetoelectric effect; The temperature variation of the ME output in the investigation carried out for x = 0.75 indicates magnetic transitions.

引用

页码：8131 / 8139

页数：9

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