Sharp Transition in Superconducting Al Small Particles

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Copyright (c) 1987 The Japan Society of Applied Physics
, , Citation Fumio Komori et al 1987 Jpn. J. Appl. Phys. 26 1313 DOI 10.7567/JJAPS.26S3.1313

1347-4065/26/S3-2/1313

Abstract

The critical magnetic field for superconductivity is studied in Al small particles at 30 mK. The shift and shape of 27A1 NMR is measured in the ensemble of the small particles with distributed size. The amount of the superconducting particles is estimated as a function of magnetic field from the analysis of the line shape. The dependence of the critical field on the size and the width of the transition are discussed.

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10.7567/JJAPS.26S3.1313