Resonant X-ray scattering on antiferroquadrupolar ordering compound Dy 0.8Gd0.2B2C2

M. Sakata, A. Tobo, T. Matsumura, D. Okuyama, Y. Murakami, Y. Wakabayashi, H. Sawa, K. Ohoyama, H. Onodera

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1 Citation (Scopus)

Abstract

Gd substitution in DyB2C2 enhances the antiferromagnetic (AFM) interaction and weakens the antiferroquadrupolar (AFQ) interaction. In Dy0.8Gd0.2B2C2, two successive transitions occur. By performing resonant X-ray scattering measurements, we confirmed the AFQ ordering temperature TQ=18.0K and the Néel temperature TN=19.5K; TN is higher than TQ in Dy 0.8Gd0.2B2C2, in contrast to DyB2C2. There exists an AFM phase between TQ and TN, and the magnetic structure is described by k=[100]. This kind of AFM phase is also observed in HoB2C2 and TbB2C2, although the magnetic structures of these compounds are long-periodic ones.

Original languageEnglish
Pages (from-to)950-952
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2005 Apr 30

Keywords

  • Quadrupolar ordering
  • Resonant X-ray scattering

ASJC Scopus subject areas

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

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