Abstract
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, Φ2 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 M−H loops measured at 5 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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
