Weak ferromagnetism in BiFeO3 doped with titanium

被引：25

作者：

Troyanchuk, I. O. ^{[1
]}

Tereshko, N. V. ^{[1
]}

Chobot, A. N. ^{[1
]}

Bushinsky, M. V. ^{[1
]}

Baerner, K. ^{[2
]}

机构：

[1] NAS Belarus, SSPA Sci Pract Mat Res Ctr, Minsk 220072, BELARUS

[2] Univ Gottingen, Dept Phys, Inst Phys 4, D-37077 Gottingen, Germany

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 21期

关键词：

Bismuth compounds; X-ray diffraction; Neutron powder diffraction; Multiferroics; Antiferromagnetic materials; BEHAVIOR; LA;

D O I：

10.1016/j.physb.2009.07.183

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Bi(1-x)A(x)Fe(1-x)Ti(x)O(3) (A-Ca, Sr, Pb, Ba) and BiFe1-xTixO3+delta systems have been studied using X-ray, neutron powder diffraction and magnetization measurements in a magnetic field up to 14 T. It was found that all Bi(1-x)A(x)Fe(1-x)Ti(x)O(3) solid solutions are rhombohedral up to x = 0.3. In the case of BiFe1-xTixO3+delta the rhombohedral distortion preserved up to x = 0.11. A homogeneous weakly ferromagnetic state was found for Bi1-xCaxFe1-xTixO3 (0.15 <= x <= 0.25) and BiFe1-xTixO3+delta (0.06 <= x <= 0.11), probably due to magnetoelectric interactions, whereas Bi(1-x)A(x)Fe(1-x)Ti(x)O(3) (A-Sr, Pb, Ba) compounds above doping level x > 0.1 seem to be collinear antiferromagnets. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4185 / 4189

页数：5

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