Effect of carbon coating on the superconducting properties of Pb and Sn nano-spheres

L. Shani, V. B. Kumar, A. Gedanken, I. Shapiro, B. Y. Shapiro, A. Shaulov, Y. Yeshurun

Research output: Contribution to journalConference articlepeer-review

Abstract

Carbon coated Sn and Pb spheres of radius smaller than the superconducting coherence length of the bulk materials were fabricated using a sonochemical technique. Both samples reveal Type-I superconducting behavior characterized by supercritical fields. Analysis of the data reveal the expected enhancement of the critical field, Hc , in the Pb but not in the Sn nano-spheres. The different behavior of the Sn spheres is attributed to carbon doping which results in a decrease of their effective coherence length to below the spheres size.

Original languageEnglish
Article number012045
JournalJournal of Physics: Conference Series
Volume969
Issue number1
DOIs
StatePublished - 19 Apr 2018
Event28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden
Duration: 9 Aug 201716 Aug 2017

Bibliographical note

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© Published under licence by IOP Publishing Ltd.

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