کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8943580 | 1645163 | 2019 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic characteristics of the ferromagnetic Fe-rich clusters in bulk amorphous Nd60Fe30Al10 alloy
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Magnetic characteristics of the ferromagnetic Fe-rich clusters is the key to exploring the hard magnetism of bulk amorphous Nd-Fe-Al alloys, which has not been fully understood yet. In this work, Φ2â¯mm Nd60Fe30Al30 rod sample was prepared by copper mold casting method. Based on the detailed microstructure analysis, the alloy is actually composed of main amorphous phase and Hcp structured nanocrystalline Nd phase. 57Fe Mössbauer spectrometry was employed to investigate the hyperfine structure of the alloy. Based on the refined hyperfine parameters, the distribution of the hyperfine field of the Fe-rich clusters suggests the typical amorphous structure of those clusters. The MâH loops measured at 5â¯K for the alloy after field cooling shifts upwards compared with that without field cooling. The reason could be attributed to the fact that parts of the clusters' moments are blocked by the strong pinning effects of antiferromagnetic coupled Nd atoms, which is difficult to be reoriented under an available applied magnetic field. The present data provides some useful information for understanding the ferromagnetic Fe-rich clusters in Nd60Fe30Al10 alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 151-154
Journal: Journal of Magnetism and Magnetic Materials - Volume 469, 1 January 2019, Pages 151-154
نویسندگان
L.Z. Zhao, H.Y. Yu, W. Li, X.F. Liao, J.S. Zhang, X.C. Zhong, Z.W. Liu, K.P. Su, J.M. Greneche,