Localized magnons in a two-dimensional mixed antiferromagnet

K. Iwasa, H. Ikeda

Research output: Contribution to journalArticlepeer-review


Neutron scattering studies on localized magnons in a two-dimensional mixed antiferromagnet Rb2Co0.95Mn0.05F4 were performed using the time-of-flight spectrometer LAM-D installed at KENS in KEK. A local mode associated with the manganese ion impurities is observed outside the host spin-wave band. It shows damping and a renormalization of excitation energy with increasing temperature, which indicate the presence of magnon-magnon interactions even in the localized magnons.

Original languageEnglish
Pages (from-to)197-199
Number of pages3
JournalPhysica B: Physics of Condensed Matter
Issue numberC
Publication statusPublished - 1995 Aug 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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