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Physics Journal of the Indonesian Physical Society
http://situs.jurnal.lipi.go.id/pjhfi/   -   http://pj.hfi.fisika.net

THE GROWTH OF SLIGHTLY-OXYGEN OVERDOPED (BI,PB)2SR2CACU2O8+DELTA SINGLE CRYSTAL AND THE STUDY OF ITS VORTEX-SOLID STATE

D. Darminto1, M. Diantoro2,3, W. Loeksmanto2 and M.O. Tjia2

1Jurusan Fisika, FMIPA ITS
2Jurusan Fisika, FMIPA ITB
3Jurusan Fisika, FMIPA Universitas Negeri Malang

Abstract
The growth of Pb-substituted Bi-2212 single crystal employing the traveling solvent floating zone method is described. The single-phase crystal with single grain size of millimeter was produced from this process. The slightly-oxygen overdoped sample has Tc = 82 K. The second magnetization peak effect extracted from the M-H data is shown to be strongly temperature-dependent, which is uncommon for the Pb-free Bi-2212 sample. The onset field Hon(T) of the second peak effect is found to be well described by a model relating this effect with the phase transition from the flux line lattice to the vortex glass phases in the vortex solid state diagram. The degrees of anisotropy (gamma2) and disorder (D) estimated from the second peak field (Hsp) data of this sample are 1568 and 0.43 respectively.

Publication : Physics Journal IPS A5 (2002) 0201 » page of Content
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