Magnetic properties of YbTGe (T = Rh, Cu, Ag)

K. Katoh, Y. Mano, K. Nakano, G. Terui, Y. Niide, Akira Ochiai

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The magnetic properties of ternary equiatomic YbTGe (T=Rh, Cu, Ag) compounds have been investigated. YbRhGe is a new antiferromagnet with T N=7K which crystallizes in the orthorhombic TiNiSi-type structure. In YbCuGe, with the hexagonal LiGaGe-type structure, ferromagnetic ordering with a magnetic moment of 0.7μB/Yb occurs below 8K. On the other hand, in YbAgGe with the hexagonal ZrNiAl-type structure, the magnetic susceptibilities along the a- and c-axis follow the Curie-Weiss law with trivalent Yb at high temperatures. No feature of some kind of phase transition is found above 1.2K. The electrical resistivity along the a- and c-axis shows metallic behavior. The ratio of the specific heat to temperature increases remarkably below 10K and shows a large value of 570mJ/molK2 at 1.6K which indicates a heavy-fermion nature of YbAgGe.

Original languageEnglish
Pages (from-to)212-218
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume268
Issue number1-2
DOIs
Publication statusPublished - 2004 Jan 1

Keywords

  • Heavy fermion
  • Magnetic properties
  • Yb-based ternary germanide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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