Preparation and superconducting properties of Pb2Sr2(Ho1-xCax)n-1Cun+1O2n+4 (n = 2 and 3) thin films

T. Fujiwara, Y. Koike, M. Inaba, T. Noji, M. Kato, Y. Saito

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We have succeeded in preparing a new single-phase of Pb2Sr2(Ho1-xCax)n-1Cun+1O2n+4 with n = 3 (Pb-3223 phase) and also a single phase of n = 2 (Pb-3212 phase) by thin film processing. The thin films, oriented along the c-axis, have been prepared on MgO(100) substrates by rf-sputtering at room temperature and post-annealing at 650 - 750°C in nitrogen. The Pb-3223 phase has been found to be stable at a lower temperature than the Pb-3212 phase and to become stable with increasing x. The thin films of the Pb-3212 phase show superconducting transition at 60 K, whereas those of the Pb-3223 phase do not show superconductivity above 4.2 K.

Original languageEnglish
Pages (from-to)2299-2300
Number of pages2
JournalPhysica B: Physics of Condensed Matter
Volume194-196
Issue numberPART 2
DOIs
Publication statusPublished - 1994 Feb 2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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