Paramagnetic Meissner effect in high-temperature superconductors

1 August 1993

journal article
Published by American Physical Society (APS) in Physical Review B

Vol. 48 (6) , 4030-4042
https://doi.org/10.1103/physrevb.48.4030

Abstract

We have studied the low-field Meissner effect of polycrystalline Bi high-temperature superconductors using a special superconducting-quantum-interference-device magnetometer. In certain samples a surprising feature was observed: Instead of the usual diamagnetic moment a paramagnetic moment develops in the field cooling mode below

T_{c}

for fields H

Keywords

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