1. Effect of reversed magnetic domains on superconductivity in Pb/BaFe12O19 hybrids.
- Author
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Zhaorong Yang, van de Vondel, Joris, Gillijns, Werner, Vinckx, Wim, Moshchalkov, Victor V., and Szymczak, Ritta
- Subjects
SUPERCONDUCTIVITY ,FERROMAGNETIC materials ,MAGNETIC domain ,MAGNETIC fields ,FERROMAGNETISM ,ELECTROMAGNETIC waves ,SUPERCONDUCTING magnets - Abstract
In this letter, the effect of reversed magnetic domains of BaFe
12 O19 on superconductivity is investigated in Pb/BaFe12 O19 hybrids. The critical field of the Pb film is increased by about 5 kOe due to the compensation of the applied field by the stray field above the reversed domains. Being related to smaller critical fields of Pb, at fields near the saturation field of BaFe12 O19 , the superconductivity can only exist above the reversed domains even at low temperatures. As a consequence of the pure reversed domain superconductivity, magnetic-field-induced superconductivity is observed in a broad temperature range. [ABSTRACT FROM AUTHOR]- Published
- 2006
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