Weak ferromagnetic order and possible high-T c superconductivity in the RuCa 2RCu 2O 8+δ ruthenium-cuprate

H. C. Ku, C. Y. Yang, B. C. Chang, B. N. Lin, Y. Y. Hsu, M. F. Tai

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3 Citations (Scopus)

Abstract

Weak ferromagnetic order with ordering temperature Tm ~47 K and possible superconducting transition with Tc ~37 K are observed for the ruthenium-cuprate RuCa2 PrCu2 O8+δ with the orthorhombic distortion of the tetragonal RuSr2 GdCu2 O8+δ -type [with Tm ~136 K and Tc (max) ~65 K] phase. Anomalous temperature dependent magnetization Mm (T) in both field-cooled and zero-field-cooled modes and isothermal magnetic hysteresis Mm (Ba) below and above Tm and Tc indicates a very complicated coexistence and interplay between weak-ferromagnetic order and possible superconductivity.

Original languageEnglish
Article number10B110
JournalJournal of Applied Physics
Volume97
Issue number10
DOIs
Publication statusPublished - 2005 May 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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