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

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

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Abstract

The ability of the polarized neutron reflectivity (PNR) technique to reveal the non-local electrodynamics effect in the profile of magnetic field penetrated into a superconductor in the Meissner state is explored with an extreme low-¿ type-I superconductor. The sample is a thick film of pure indium deposited on a silicon oxide substrate having a neutron refraction index smaller than that for indium. It is shown that the PNR technique allows one to distinguish between exponential and non-exponential shape of the field profile. The data obtained are consistent with the magnetic field distribution following from the non-local theory.
Original languageEnglish
Article number012502
Pages (from-to)012502-1/4
Number of pages4
JournalPhysical Review B
Volume78
Issue number1
DOIs
Publication statusPublished - 2008

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