Crystal structure and magnetic properties of hexagonal (formula presented) Lu, and Sc) and the effect of doping

T. Katsufuji*, M. Masaki, A. Machida, M. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, K. Kitazawa, H. Takagi

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

A ferroelectricity-magnetism-coexisting system, hexagonal (formula presented) Lu, and Sc), has been investigated by synchrotron x-ray and neutron powder diffraction measurements. It is found from x-ray diffraction measurements that the ferroelectric polarization originates from the tilting of (formula presented) polyhedra and the buckling of R layers, which persists up to 1000 K. Neutron diffraction measurements have revealed the reduction of ordered moments from the expected value, as well as strong magnetic diffuse scattering existing far above (formula presented) both of which are caused by geometrical frustration of the triangular lattice of Mn ions. We have also investigated the effects of Zr doping into the R site and have found that Zr doping drastically suppresses both ferroelectric distortion and magnetic ordering.

本文言語English
ページ(範囲)1-8
ページ数8
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
66
13
DOI
出版ステータスPublished - 2002 1 1
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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