MnO6 distortion and spin ordering in Nd1-xSrxMnO3 (x=0.55 and 0.65)

Sh Xu, Y. Moritomo, A. Machida, K. Ohoyama, K. Kato, A. Nakamura

研究成果: Article査読

13 被引用数 (Scopus)

抄録

Interrelation between the distortion of the MnO6 octahedra and spin ordering was investigated for Nd0.45Sr0.55MnO3 and Nd0.35Sr0.65MnO3 by means of synchrotron-radiation x-ray powder diffraction and neutron powder diffraction. The ground state of the former (latter) compounds is the dx2-y2(d3z2-r2 orbital-ordered state. A strong orbital-spin coupling is observed in Nd0.45Sr0.55MnO3, making a sharp contrast with the weak coupling in Nd0.35Sr0.65MnO3. We interpret the strong coupling in terms of the kinetic energy gain of the eg carriers in the dx2-y2 orbital-ordered state.

本文言語English
論文番号024420
ページ(範囲)244201-244206
ページ数6
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
66
2
DOI
出版ステータスPublished - 2002 7月 1

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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