AC Susceptibility of Superconducting La-Sr-Cu-O System

1 April 1987

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 26 (4A) , L481
https://doi.org/10.1143/jjap.26.l481

Abstract

The complex susceptibility χ'-iχ'' of the superconducting La_1.8-Sr_0.2-Cu₁-O₄ was measured. The complete Meissner effect of the whole volume was observed below 20 K, though the transition temperature of the resistance was 36 K (at the midpoint). Both χ' and χ'' are found to be very sensitive to the magnitude of the a.c. magnetic field. The measurements were made on several specimens prepared in different conditions. From these measurements it was concluded that the boundary and the surface of grains play an important role in the superconductivity in this system.

Keywords

This publication has 4 references indexed in Scilit:

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