Field-tuneable diamagnetism in ferromagnetic-superconducting core-shell structures

André Müller, Sara E C Dale, Miles A Engbarth, Simon J Bending, Laurence M Peter, Andreas Knittel, Hans Fangohr

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Three dimensional ferromagnet-superconductor core-shell structures are realized by electrocrystallisation and their magnetic properties investigated. We observe fully re-entrant core superconductivity in increasing fields that survives well above the bulk critical field due to compensation effects. The net measured magnetization of optimized structures could be switched from absolute para(ferro-)magnetic to diamagnetic by tuning the external magnetic field. Micromagnetic simulations of the structures are in good qualitative agreement with our results.
Original languageEnglish
Pages (from-to)1874-1880
Number of pages7
JournalAdvanced Functional Materials
Volume21
Issue number10
Early online date13 Apr 2011
DOIs
Publication statusPublished - 24 May 2011

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