Trend of superconductivity in amorphous superconducting transition metals and their alloys
A plausible interpretation for the trend of superconducting transition temperature T/sub c/ in amorphous transition metal TM alloys is presented from a chemical point of view. It is shown that the T/sub c/ behavior is not a reflection of the dependence of the atomic parameter eta on the number of electrons per atom, but rather due to two other effects. One is the changes in the density of states due to the mixing of antibonding and bonding states in the bcc amorphous metals. The other is an increase in the number of valence d electrons participating in the phonon-induced d-d coupling towards the mid series. (auth)
- Research Organization:
- California Inst. of Tech., Pasadena (USA). W.M. Keck Lab. of Engineering Materials
- DOE Contract Number:
- AT(04-3)-822
- NSA Number:
- NSA-33-020733
- OSTI ID:
- 4081915
- Report Number(s):
- CALT--822-80
- Country of Publication:
- United States
- Language:
- English
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