161^<D>y Mossbauer Spectroscopic Study of the Ferroquadrupolar Ordering Compound DyB_6 : Condensed Matter: Electronic Properties, etc.

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概要

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• We have measured the ^<161>Dy Mossbauer effects on the cubic ferroquadrupolar ordering compound DyB_6. In the antiferromagnetic phase, the Mossbauer spectra are interpreted well by a single set of hyperfine parameters which gives the Dy magnetic moment of 9.8 μ_B. The nuclear quadrupole splitting implies that the crystal field parameter A^0_2 originating from the rhombohedral strain by the ferroquadrupoler ordering is positive. Based on these facts, we conclude that the antiferromagnetic structure is a collinear one where the Dy moment direction is nearly parallel to the strain axis (the cubic [1 1 1] axis). Reflecting the 4f electronic state that two or more Kramers doublets are quasi-degenerated, the spectra in the ferroquadrupolar ordered and paramagnetic phases can not be analyzed well by the two-level relation model.

• 社団法人日本物理学会の論文
• 2000-04-15

著者

• INDOH Kentaro

  Institute for Materials Research, Tohoku University

• YAMAGUCHI Yasuo

  Institute for Materials Research, Tohoku University

• ONODERA Hideya

  Institute for Materials Research, Tohoku University

• Kobayashi Hisao

  Department Of Physics Graduate School Of Science Tohoku University

• Yamaguchi Y

  Tohoku Univ. Sendai

• Yamaguchi Y

  Kumamoto Techno Res. Park Kumamoto Jpn

• KUNll Satoru

  Department of Physics, Graduate School of Science, Tohoku University

• Ido K

  Institute For Materials Research Tohoku University:(present Office)shlumberger K.k.

• Kunll Satoru

  Department Of Physics Graduate School Of Science Tohoku University

• Onodera Hideya

  Institute For Materials Research

• Yamaguchi Yasuo

  Institute For Materials Research Tohoku University

• Yamaguchi Y

  Central Workshop Osaka University

• Kadowaki H

  Tokyo Metroporitan Univ. Tokyo

• Ido Kaihei

  Institute For Materials Research Tohoku University:(present Address)fuji Xerox Dpsc Research And Dev

• Kobayashi H

  Tohoku Univ. Sendai‐shi Jpn

• Kobayashi H

  Inst. Molecular Sci. Aichi

• Kobayashi Hisao

  Department Of Physics Tohoku University

• Kamimura Hirohiko

  Department Of Materials Science Hiroshima University

• Kato Hideyuki

  Department Of Physics Faculty Of Science Hokkaido University

• Indoh K

  Institute For Materials Research Tohoku University:(present Office)shlumberger K.k.

• Kurai Hiroyuki

  Department Of Organic And Polymeric Materials Tokyo Institute Of Technology

• Kobayashi Hisao

  Department of Physics, Tohoku University

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