Induced magnetic anisotropy in Fe0.7Co0.3 fine particles

被引：2
|
作者：
Sebt, S. A. [1 ]
Zoriasatain, S.
Amirhoseini, M.
Akhavan, M.
机构：
[1] Islamic Azad Univ, Sci & Res Branch, Phys Res Ctr, Tehran, Iran
[2] Islamic Azad Univ, Tehran N Branch, Dept Phys, Tehran, Iran
[3] Tarbiat Modares Univ, Dept Phys, Tehran, Iran
[4] Sharif Univ Technol, Dept Phys, MRL, Tehran, Iran
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2006年 / 39卷 / 23期
关键词：
D O I：
10.1088/0022-3727/39/23/004
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In FeCo fine particles, induced anisotropy has a considerable contribution in increasing the coercivity. We have prepared Fe0.7Co0.3 fine particles by the borohydride method in the presence of various magnetic fields in the range 0 <= H-0 <= 2kOe. We have studied and analysed the factors affecting the induced anisotropy and magnetic structure of these particles by the use of SEM, XRD and vibrating sample magnetometer. It was found that heat treatment, and also the presence of a magnetic field of about 1 kOe during the grain growth, result in the maximum coercivity of Fe0.7Co0.3 fine particles. The value of magnetic field intensity should be such that it causes formation of oriented atomic pairs in crystal sites.
引用
收藏
页码：4925 / 4929
页数：5
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