Irreversibility line of the superconducting compound HgBa2Ca3Cu4O10+δ

P Estrela, C Abilio, M Godinho, J L Tholence, J J Capponi

Research output: Contribution to journalArticlepeer-review

Abstract

DC magnetization measurements were performed on the mercury-based superconductor HgBa2Ca3Cu4O10+δ;. The analysis of the magnetic hysteretic behavior of the sample either with temperature or with field, allowed the determination of the irreversibility line of this compound, as well as temperature and magnetic field dependence of the critical current density. The experimental temperature dependence of the irreversibility field (H*) is well described in terms of the reduced temperature by H* ∝(1-T/Tc)n, with 4.5
Original languageEnglish
Pages (from-to)2731-2732
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume235-240
Issue number4
DOIs
Publication statusPublished - 1994

Keywords

  • Phase transitions
  • Magnetization
  • SQUIDs
  • Mercury compounds
  • Oxide superconductors
  • Critical current density (superconductivity)
  • Hysteresis
  • Magnetometers
  • Magnetic field effects
  • High temperature superconductors
  • Superconducting transition temperature
  • Thermal effects

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