Evidence for nonmonotonic magnetic field penetration in a type-I superconductor

V. F. Kozhevnikov, C. V. Giuraniuc, M. J. Van Bael, K. Temst, C. Van Haesendonck, T. M. Mishonov, T. Charlton, R. M. Dalgliesh, Yu N. Khaidukov, Yu V. Nikitenko, V. L. Aksenov, V. N. Gladilin, V. M. Fomin, J. T. Devreese, J. O. Indekeu

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7 Citations (Scopus)

Abstract

Polarized neutron reflectometry (PNR) provides evidence that nonlocal electrodynamics governs the magnetic field penetration in a low- κ superconductor. The sample is an In film with a large elastic mean-free path. It is shown that PNR can resolve the difference between the reflected neutron spin asymmetries predicted by the local and nonlocal theories of superconductivity. The experimental data support the nonlocal theory, which predicts a nonmonotonic decay of the magnetic field.

Original languageEnglish
Article number012502
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number1
DOIs
Publication statusPublished - 10 Jul 2008

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