Electron Spin resonance in triangular antiferromagnets

Hidekazu Tanaka, Toshio Ono, Shuji Maruyama, Soichiro Teraoka, Kazukiyo Nagata, Hitoshi Ohta, Susumu Okubo, Shojiro Kimura, Takashi Kambe, Hiroyuki Nojiri, Mitsuhiro Motokawa

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We give an overview of our studies on the electron spin resonance (ESR) in the hexagonal triangular antiferromagnets of ABX3 type using millimeter and submillimeter waves and static and pulsed high magnetic fields. Novel ESR modes, which cannot be understood by the conventional theory of the antiferromagnetic resonance, were observed. Examples of this include that there exists the gapless excitation even for the easy-axis anisotropy. The ESR modes can be classified by the signs of the exchange interaction Jo along the c-axis and the anisotropy. The ESR modes were calculated within the framework of the mean-field approximation using three-sublattice and six-sublattice models for the ferromagnetic and antiferromagnetic Jo interaction, respectively. The experimental results were well described by the present calculations.

Original languageEnglish
Pages (from-to)84-98
Number of pages15
Journaljournal of the physical society of japan
Volume72
Issue numberSUPPL. B
DOIs
Publication statusPublished - Jan 1 2003

Keywords

  • Antiferromagnetic resonance
  • Esr
  • Frustration
  • Hexagonal ABX antiferromagnet
  • Spin wave
  • Triangular antiferromagnet

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Tanaka, H., Ono, T., Maruyama, S., Teraoka, S., Nagata, K., Ohta, H., Okubo, S., Kimura, S., Kambe, T., Nojiri, H., & Motokawa, M. (2003). Electron Spin resonance in triangular antiferromagnets. journal of the physical society of japan, 72(SUPPL. B), 84-98. https://doi.org/10.1143/JPSJS.72SB.84