Proximity electron tunneling spectroscopy. III. Electron-phonon coupling in the Nb-Zr system

✍ Scribed by E. L. Wolf; R. J. Noer; Gerald B. Arnold

• Publisher: Springer US
• Year: 1980
• Tongue: English
• Weight: 809 KB
• Volume: 40
• Category: Article
• ISSN: 0022-2291
• DOI: 10.1007/bf00119514

✦ Synopsis

The technique of McMillan-Rowell tunneling spectroscopy, extended by a method of proximity junctions to poorly oxidizing materials, is applied to study electron-phonon coupling in Nbl-xZrx at x= 0.25, correspeonding to the maximum Tc in the Nb-Zr alloy system. The resulting a F(to) function provides A = 1.3 for the alloy, and indicates that the primary benefit to superconductivity upon alloying arises from softening of the effective phonon spectrum.