The thin film has a Tc (zero resistivity) of about 40 K. Also disclosed is a method of producing the superconducting thin film.
An objective of the present invention is to produce a superconducting thin film having superior critical current characteristics.
An oxide superconductor is composed of the tape-shaped base material, an intermediate layer formed on the tape-shaped base material, and an oxide superconducting thin film layer formed on the intermediate layer.
In the preferred embodiment, the superconducting film surface is cleaned by chemical etching, preferably with a dilute solution of bromine in methanol.
A coil (70) is attached to the surface of the substrate, electrically insulated from the superconducting film, and is energized to induce flux within the SQUID which is concentrated within the open area.
A process for making a superconducting Tl-Pb-Sr-Ca-Cu-O thin film comprised of at least one phase of the formula Tl0.5Pb0.5Sr2Ca1+nCu2+nO7+2n where n = 0, 1 or 2.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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