Abstract
The superconducting transition temperature, upper critical field, and magnetic susceptibility have been measured in four binary metallic glass systems: Cu-Zr, Ni-Zr, Co-Zr, and Fe-Zr. For each alloy system, a full and continuous range of Zr-rich compositions accessible by melt spinning has been examined. For Cu-Zr, the range is ; for Ni-Zr, ; for Co-Zr, , and for Fe-Zr, ( being the concentration of Zr in at.%). The results show clearly the influence of spin fluctuations in reducing the superconducting transition temperature. The data have been successfully analyzed using a modified form of the McMillan equation together with expressions for the Stoner enhanced magnetic susceptibility and the Ginsburg-Landau-Abrikosov-Gor'kov expression for the upper critical field.
- Received 2 November 1982
DOI:https://doi.org/10.1103/PhysRevB.27.4149
©1983 American Physical Society