Effects of interchain exchange interactions on ESR modes in axial triangular antiferromagnets

Takashi Kambe, Hidekazu Tanaka, Kazukiyo Nagata

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We investigate the effects of a diagonal interchain interaction J 2 on the ESR modes in the ABX3-type antiferromagnets with easy-axis anisotropy.The static properties are described by replacing the conventional interchain interaction J1 by J1-2J 2. However, because of the phase difference between the sublattice magnetizations, J2 coupling produces marked effects on some ESR modes in cooperation with J1 coupling. Large separation between the ω1-mode and EPR line for H ⊥ c and ω2- and ω3-modes for H ∥ c (H>HSF) can be derived by maintaining consistency with the canting angle of spins from the c-axis and the spin wave dispersion at zero field. ESR measurements in CsMnI3 are reported. The frequency-field diagram obtained is described well by the model involving J2 coupling.

Original languageEnglish
Pages (from-to)3388-3391
Number of pages4
JournalJournal of the Physical Society of Japan
Volume62
Issue number10
Publication statusPublished - Oct 1993
Externally publishedYes

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interactions
wave dispersion
sublattices
magnons
diagrams
magnetization
anisotropy

Keywords

  • Axial triangular antiferromagnets
  • CsMnI
  • Diagonal interchain interaction
  • Electron spin resonance

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Effects of interchain exchange interactions on ESR modes in axial triangular antiferromagnets. / Kambe, Takashi; Tanaka, Hidekazu; Nagata, Kazukiyo.

In: Journal of the Physical Society of Japan, Vol. 62, No. 10, 10.1993, p. 3388-3391.

Research output: Contribution to journalArticle

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