کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1447613 | 988650 | 2011 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Magnetic force microscopy investigation of the domain structure of nanocomposite Nd2Fe14B/Fe3B magnets Magnetic force microscopy investigation of the domain structure of nanocomposite Nd2Fe14B/Fe3B magnets](/preview/png/1447613.png)
In this paper, a detailed magnetic force microscopy study has been made of the domain structure of isotropic nanocomposite Nd2Fe14B/Fe3B magnet ribbons prepared by melt-spinning. The domain structure is composed of interaction domains a few hundred nanometers in size, which indicates the presence of a strong exchange coupling between the grains. Within the interaction domains, a fine substructure on the same scale as the grain size is observed with high-contrast and clarity, which is an improvement over earlier results. As a consequence, the interaction domains are clusters of many single-domain grains whose magnetization directions are not precisely the same but differ slightly. In general, the interaction domains have both perpendicular and in-plane magnetization components. The domain width of the interaction domains (260 ± 20) nm was determined by digital means (using the method of Bodenberger and Hubert), in contrast to previous investigations.
Journal: Acta Materialia - Volume 59, Issue 2, January 2011, Pages 531–536