Superconducting transition temperatures of amorphous bismuth alloy films

Measurements have been made of the critical temperatures T of c amorphous bismuth alloy films containing lead, thallium, and antimony in concentrations up to 13 atomic percent. The results indicate that the shift in T is approximately linear in impurity concentration, as c expected. The derivative of T with respect to impurity concentration c is not simply related to the valence or atomic size of the impurity atoms. It is suggested that this may have the same cause as the breakdown of Linde's rule for liquid alloys. The widths of the transitions of the films into the superconducting state were extremely small (- 5 millidegrees). This observation has a direct bearing on our understanding of coherence lengths in superconductors.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Year dc:date

2011

Author dc:creator

• Shier, John Shouse

Contributors dc:contributor

• Ginsberg, D.M.

• superconducting transition temperatures
• amorphous bismuth alloy films
• superconducting coherence lengths

Statement dc:rights

• 1966 John Shouse Shier

Language dc:language

en

Identifier

6132759

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/25072