Method of evaluating characteristics of superconductors and proc

Details Method of evaluating characteristics of superconductors and proc Method of evaluating characteristics of superconductors and proc

1991-04-10

1992-04-21

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503362, 505842, 427 62, G01J 2135

Patent

active

051071193

ABSTRACT:
A method of evaluating the characteristics of superconductors, comprising: irradiating light to a superconductor held at a predetermined temperature; detecting light transmitted through the superconductor and composing a spectrum of the transmitted light; and using the obtained spectrum, calculating a ratio of the number of electrons contributing to a normal conduction to the number of electrons contributing to a superconduction in the superconductor, the ratio being effective at said predetermined temperature. A process and an apparatus for forming superconductor films by using the method are also disclosed.

REFERENCES:
patent: 4490612 (1984-12-01), Tormala250341
"Derivation of an Expression for the Conductivity of Superconductors in Terms of the Normal-State Conductivity", Luc Leplae, Physical Review B, vol. 27, No. 3, Feb. 1, 1983, pp. 1911-1912.

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