Anisotropic spin waves in a metallic antiferromagnet

  • H. Yoshizawa
  • , H. Kawano
  • , J. Fernandez-Baca
  • , H. Kuwahara
  • , Y. Tokura

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

We demonstrate that (Formula presented) is an example of a metallic antiferromagnetic manganite, and that it exhibits very anisotropic spin-wave dispersion relations with intra- and interplanar exchange parameters (Formula presented) and (Formula presented) respectively. This anisotropy reflects underlying (Formula presented)-type orbital ordering, and the metallic behavior indicates that a charge ordering is decoupled from the orbital ordering in this system.

Original languageEnglish
Pages (from-to)R571-R574
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume58
Issue number2
DOIs
StatePublished - 1998
Externally publishedYes

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