Evidence for possible phase separations in (formula presented)

Y. Y. Xue, D. H. Cao, B. Lorenz, C. W. Chu

Research output: Contribution to journalArticlepeer-review

Abstract

An unusual thermal-magnetic hysteresis was observed between a minor magnetic transition around 120 K and the main one at 80 K in superconducting (formula presented) (Ru1222R) samples, where (formula presented) or Eu, down to a submicron length scale. The observation suggests a possible phase separation and is consistent with the very small but universal demagnetizing factor observed, which is difficult to reconcile with the canted-spin structure previously proposed. In such a scenario, the unusual superconducting properties of the Ru-based cuprates can also be understood naturally.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number2
DOIs
Publication statusPublished - 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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