期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 323, 期 12, 页码 1727-1733出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2011.02.010
关键词
Site preference; Ferrite; Magnetic property
SrFe12-x(Sn0.5Zn0.5)(x)O-19 thin films with x=0-5 were synthesized by a sol-gel method on thermally oxidized silicon wafer (Si/SiO2). The site preference and magnetic properties of Zn-Sn substituted strontium ferrite thin films were studied using Fe-57 Mossbauer spectroscopy and magnetic measurements. Mossbauer spectra displayed that the Zn-Sn ions preferentially occupy the 2b and 4f(2) sites. The preference for these sites is responsible for the anomalous increase in the magnetization at high Zn-Sn substitutions. X-ray diffraction (XRD) patterns and field emission scanning electron microscope (FE-SEM) micrographs demonstrated that single phase c-axis hexagonal ferrite films with rather narrow grain size distribution were obtained. Vibrating sample magnetometer (VSM) was employed to probe magnetic properties of samples. The maximum saturation of magnetization and coercivity at perpendicular direction were 265 emu/g and 6.3 kOe, respectively. It was found that the complex susceptibility has linear variation with static magnetic field. (C) 2011 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