Observation of the antiferroquadrupolar order in (formula presented) by resonant x-ray scattering

T. Matsumura, N. Oumi, K. Hirota, H. Nakao, Y. Murakami, Y. Wakabayashi, T. Arima, S. Ishihara, Y. Endoh

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have investigated the antiferroquadrupolar (AFQ) order in (formula presented) by resonant x-ray scattering. X rays with energies near the (formula presented) absorption edge of Dy were employed. Superlattice peaks that correspond to three kinds of propagation vectors of (1 0 0), (1 0 1/2), and (0 0 1/2) were investigated in detail with polarization analyses. The experimental results are analyzed using a formalism of resonant x-ray scattering and a model of the AFQ order. The magnetic and quadrupolar scatterings are explained by the model satisfactorily. A detailed investigation of the critical behavior of the AFQ ordering is also reported. The critical exponent (formula presented) is deduced to be 0.35, not far from the three-dimensional Heisenberg system. We have also succeeded in detecting the diffuse scattering above (formula presented).

本文言語English
ページ(範囲)1-11
ページ数11
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
65
9
DOI
出版ステータスPublished - 2002
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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