Magnetic phase transition in PdxCoyO2

Hirotaka Okabe, Masanori Matoba, Mituru Itoh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The nonstoichiometric compound Pdx.Coy,O2 (x = 0.72,y = 0.68) were carefully prepared by the metathetical reaction and characterized by the measurements of the powder X-ray diffraction, the inductively coupled plasma spectrum, the DC magnetic susceptibility, and the specific heat. The stoichiometric PdCoO2 exhibits Pauliparamagnetism, while two magnetic phase transitions were indeed observed in Pd0.72Co0.68O2. The deviation of fieldcooled from zero-field-cooled curves appears below 55 K, indicating a certain kind of antiferromagnetic phase transition. The well-defined cusp is seen with a peak at Tg = 4.5 K, indicating the existence of spin-glass like transition.

Original languageEnglish
Pages (from-to)948-949
Number of pages2
JournalPhysica B: Condensed Matter
Volume329-333
Issue numberII
DOIs
Publication statusPublished - 2003 May

Keywords

  • Delafossite
  • Magnetic phase transition
  • PdCoO
  • Spin-glass
  • Triangular lattice

ASJC Scopus subject areas

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

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