Little–Parks effect

The Little–Parks effect was discovered in 1962 by William A. Little and Ronald D. Parks in experiments with empty and thin-walled superconducting cylinders subjected to a parallel magnetic field. It was one of the first experiments to indicate the importance of Cooper-pairing principle in BCS theory.

The essence of the Little–Parks (LP) effect is slight suppression of the cylinder's superconductivity by persistent current.

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