Abstract
A systematic study of the magnetic properties of Fe-Sc amorphous alloys has been carried out for the first time. The samples were prepared by dc high-rate sputtering. The average magnetic moment is larger than that of Fe-Zr and Fe-Ti amorphous alloys. This trend is in conformity with the results obtained by band calculations. The difference in magnitude between calculated and observed magnetic moments in Fe-early transition metals is explained by taking into account the contraction of atomic distance. The thermal expansion anomaly associated with the spontaneous volume magnetostriction ω s is more pronounced with decreasing Sc content and the shrinkage is observed even above the Curie temperature. The Curie temperature exhibits the highest value around 20% Sc. The pressure shift of the Curie temperature is also significantly large, reflecting a large value of ω s . The pressure coefficient of the Curie temperature (1/T c )(dT c /dP) varies linearly with the Curie temperature, and its sign changes around 20% Sc. The striking thermal expansion anomaly above T c , and the linear relationship between (1/T c )(dT c /dP) and T c imply that the present Fe-Sc amorphous alloys are magnetically inhomogeneous.
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.
