Magnetic Hardening of Sm2Fe17N3 by Radiation Damage
نویسندگان
چکیده
Pinning type coercivity has been induced in large sø50 mmd particles of Sm2Fe17N3 by irradiation with 5 GeV Pb561 ions. Mössbauer spectroscopy is used to analyze the structure of the defects and estimate their volume. Magnetization measurements indicate that the induced defects are anisotropic in shape. A model of strong pinning by cylindrical defects is employed to deduce a defect radius of order 2 nm from the measured fluence dependence of the coercivity. [S0031-9007(98)07898-3]
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تاریخ انتشار 1998