Direct Evidence for Multiferroic Magnetoelectric Coupling in 0.9BiFeO3-0.1BaTiO3

被引：275

作者：

Singh, Anar ^{[1
]}

Pandey, Vibhav ^{[2
]}

Kotnala, R. K. ^{[2
]}

Pandey, Dhananjai ^{[1
]}

机构：

[1] Banaras Hindu Univ, Inst Technol, Sch Mat Sci & Technol, Varanasi 221305, Uttar Pradesh, India

[2] Natl Phys Lab, New Delhi 110012, India

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.101.247602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic, dielectric and calorimetric studies on 0.9BiFeO(3)-0.1BaTiO(3) indicate strong magnetoelectric coupling. XRD studies reveal a very remarkable change in the rhombohedral distortion angle and a significant shift in the atomic positions at the magnetic T-c due to an isostructural phase transition. The calculated polarization using Rietveld refined atomic positions scales linearly with magnetization. Our results provide the first unambiguous, atomic level evidence for magnetoelectric coupling of intrinsic multiferroic origin in a BiFeO3-based system.

引用

页数：4

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