Domain Structure and Magnetization Process in Short Glass-Coated Amorphous Microwires with Positive Magnetostriction
LIU Kai-Huang, LU Zhi-Chao** , LI De-Ren, LIU Tian-Cheng, ZHOU Shao-Xiong
China Iron and Steel Research Institute Group, Advanced Technology and Materials Co., Ltd., Beijing 100081
Abstract ：The domain structure and magnetisation process in short glass-coated amorphous Fe45 Co20 Ni10 Si9 B16 microwires are investigated by analyzing the hysteresis loops measured by a vibrating sample magnetometer. Methods of calculating the thickness of the outer shell and the critical length to observe magnetic bistability have been established. The thickness of the outer shell is 2.3 μm and the critical length is 8.11 mm for a microwire with a metallic core diameter of 31.1 μm and a glass coat thickness of 10.6 μm. The experimental results demonstrate the reliability of this method to calculate the critical length.
收稿日期: 2012-06-08
出版日期: 2012-10-01
:
75.50.Kj
(Amorphous and quasicrystalline magnetic materials)
75.60.Ej
(Magnetization curves, hysteresis, Barkhausen and related effects)
75.60.Ch
(Domain walls and domain structure)
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2012, Vol. 29 
