Superconducting properties of Hg-1223 prepared by using fluorides

B. J. Jönsson, T. Turkki, V. Ström, Z. Iqbal, K. V. Rao

Research output: Contribution to journalArticlepeer-review

Abstract

A new approach involving the use of fluorides has been adopted to synthesize phase-pure Pb-substituted Hg-1223 superconductors under ambient conditions. A representative sample is characterized using x-ray, SQUID magnetometer, and ac susceptibility techniques. In a measuring field of 1 G, a sharp diamagnetic onset is observed at 132 K and perfect flux screening persists up to 122 K. On approaching Tc the irreversibility llle follows a power law with exponent α=2.2. From the ac susceptibility data, in the context of the Bean critical state model, the critical current density at helium temperatures is estimated to be 1.5×106 A/cm2.

Original languageEnglish (US)
Pages (from-to)6583-6585
Number of pages3
JournalJournal of Applied Physics
Volume79
Issue number8 PART 2B
StatePublished - Apr 15 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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