期刊
THIN SOLID FILMS
卷 517, 期 8, 页码 2749-2752出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2008.11.111
关键词
Magnetic properties and measurements; Second harmonic generation; BiFeO3; Annealing
类别
资金
- National Research Laboratory Project
- Global Partnership Program
- Basic Research Program
We report the enhancement of the saturation magnetization in BiFeO3 films achieved by magnetic annealing. The saturation magnetization of the film annealed in a magnetic field is found to be 80 emu/cc, which is an increase nearly by a factor of 10 compared to the as-grown one. From the investigation of optical second harmonic generation (SHG), we observe the presence of s(out)-polarization under s(in)-polarization in the film annealed in a magnetic field, which implies that the spin state is homogeneous antiferromagnetic one rather than cycloidal one. We interpret the observed large enhancement in the saturation magnetization to be due to the magnetic phase transition from cycloidal to homogenous antiferromagnetic one. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据