Crystallographic, magnetic, and ferroelectric structures of bulklike BiFeO3 thin films

被引：51

作者：

Bea, H. ^{[1
,2
]}

Bibes, M. ^{[1
,2
]}

Zhu, X. -H. ^{[1
,2
]}

Fusil, S. ^{[1
,2
]}

Bouzehouane, K. ^{[1
,2
]}

Petit, S. ^{[3
]}

Kreisel, J. ^{[4
]}

Barthelemy, A. ^{[1
,2
]}

机构：

[1] Univ Paris 11, F-91405 Orsay, France

[2] CNRS Thales, Unite Mixte Phys, F-91767 Palaiseau, France

[3] CEA, Lab Leon Brillouin, CNRS, UMR12, F-91191 Gif Sur Yvette, France

[4] MINATEC, Mat & Genie Phys Lab, Grenoble Inst Technol, Mat & Genie Phys Lab,CNRS, F-38016 Grenoble, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 07期

关键词：

D O I：

10.1063/1.2940327

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

BiFeO3 thin films deposited on (111)-SrTiO3 substrates present both structural (rhombohedral) and multiferroic properties similar to bulk. The structural relaxation occurring when thickness increases and the low critical thickness possibly indicate different defect types and distribution as compared to (001)-BiFeO3, which may influence multiferroic domain dynamics. The same G-type antiferromagnetic order as in bulk is observed by neutron diffraction, with a superimposed weak ferromagnetic moment (10 emu/cm(3)) showing a planar anisotropy of 5 kJ/m(3). When doped with 5% Mn these films also exhibit a polarization of 95 mu C/cm(2) along the [111] direction at room temperature, similar to high-quality BiFeO3 single crystals. (C) 2008 American Institute of Physics.

引用

页数：3

共 27 条

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