Magnetic investigations of the high-Tc superconductor Hg-1212

P. Schilbe, K. Lüders, M. Baenitz, D. A. Pavlov, A. Abakumov, E. V. Antipov

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

The magnetic properties of several powder samples of the high-Tc superconductors Hg-1212 and (HgTl)-1212 are investigated by means of ac and dc susceptibility measurements. The temperature dependence of irreversibility fields is determined up to magnetic fields of 14 T. It can be described in the framework of a depinning model developed by Matsushita. In case of Tl substitution the irreversibility line is clearly enhanced. For this sample further analysis of the real and imaginary parts of the ac susceptibility leads in zero field without any free parameters to a good agreement with the Bean-model, whereas in higher fields additional mechanisms seems to occur.

Original languageEnglish
Pages (from-to)247-248
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume388-389
DOIs
Publication statusPublished - May 2003
Externally publishedYes
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: 20 Aug 200227 Aug 2002

Keywords

  • AC-susceptibility
  • High-T superconductor
  • Irreversibility field

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