Antiferromagnetic resonance in the cubic perovskite (formula presented)

H. Yamaguchi, K. Katsumata, M. Hagiwara, M. Tokunaga, H. L. Liu, A. Zibold, D. B. Tanner, Y. J. Wang

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Low-temperature high-magnetic-field far-infrared spectroscopy and electron-spin-resonance measurements have been performed on single crystals of the cubic perovskite (Formula presented) We found the absorption at (Formula presented) observed by Richards [P. L. Richards, J. Appl. Phys. 34, 1237 (1963)] that was attributed to antiferromagnetic resonance (AFMR) is not magnetic in origin. Instead, a different absorption is well fit by a theory of AFMR with uniaxial anisotropy. Analysis yields an anisotropy energy of (Formula presented) The ratio between the anisotropy field and the exchange field is (Formula presented) Thus, (Formula presented) is an excellent example of a Heisenberg antiferromagnet.

Original languageEnglish
Pages (from-to)6021-6023
Number of pages3
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number9
Publication statusPublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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