Abstract

The magnetic phase diagram is constructed for the amorphous (Co0.9Zr0.1)100-xXx (X=Al, Si, Cu, Ge and Zr) psuedo-binary alloys in the concentration range 0<or=x<or=45 through the DC and AC magnetization measurements in the range 4-800 K. The present results are compared with the previous data for the amorphous Co-Zr binary alloys. The ferromagnetism of the amorphous Co90Zr10 master alloy is rapidly weakened and disappears at about x=30, regardless of the third elements Al, Si, Cu and Ge. The concentration dependence of the density of states at the Fermi level is deduced by extracting the band structure contribution from the measured linearly temperature-dependent specific heat coefficient. A significant difference in the electronic structure emerges above x=30, depending on whether the element X added to the Co90Zr10 master alloy is a non-transition metal, like Si and Ge, or the transition metal Zr. A rapid increase in the electrical resistivity with increasing x beyond x=20 for the Si and Ge bearing alloys is attributed to a rapidly decreasing density of states at the Fermi level.

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 call

Disclaimer: 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.