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

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12 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number024420
Pages (from-to)244201-244206
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number2
DOIs
Publication statusPublished - 2002 Jul 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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    Xu, S., Moritomo, Y., Machida, A., Ohoyama, K., Kato, K., & Nakamura, A. (2002). MnO6 distortion and spin ordering in Nd1-xSrxMnO3 (x=0.55 and 0.65). Physical Review B - Condensed Matter and Materials Physics, 66(2), 244201-244206. [024420]. https://doi.org/10.1103/PhysRevB.66.024420