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http://dx.doi.org/10.4283/JKMS.2005.15.1.012

Neutron Irradiation Effects on the Magnetic Properties in Fe87Zr7B6 Amorphous Alloy  

Kim, Kyeong-Sup (Chungbuk National University)
Kim, Hyo-Chol (Chungbuk National University)
Yu, Seong-Cho (Chungbuk National University)
Abstract
The $Fe_{87}Zr_{7}B_{6}$ amorphous alloy after neutron irradiation are studied hysteresis loop and complex permeability measurements. The total integration fluence of fast neutrons is varied from $1.92{\times}10^{14}$ to $4.85{\times}10^{16}n_{f1}cm^{-2}$. After neutron irradiation, the imaginary part of complex permeability in low frequency region decreased due to the decrease of wall motion, but the permeability in high frequency region increased due to the enhancement of rotational magnetization. The measurement of hysteresis loop showed the increase of magnetic softness, related to rotational magnetization, but saturation magnetization was decreased in neutron irradiation sample.
Keywords
neutron irradiation; domain wall motion; rotational magnetization; magnetic relaxation;
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