Effects of Diagonal Interchain Exchange Interaction on the ESR Modes of ABX3-Type Triangular Antiferromagnets

Takashi Kambe, Hidekazu Tanaka, Shojiro Kimura, Hitoshi Ohta, Mitsuhiro Motokawa, Kazukiyo Nagata

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Electron Spin Resonance (ESR) measurements have been performed on axial triangular antiferromagnets CsNiBr3 and CsMnI3 in their lowest three-dimensional (3 D) ordered phase. The frequency vs. magnetic field diagrams are obtained in the frequency range from 9 to 380 GHz and the magnetic field up to 160 kOe. Several significant disagreements between the experimental data and the theory based on the conventional model are found. It is shown that the disagreements can be removed by the diagonal interchain exchange coupling J2. The ESR theory is developed taking the J2 coupling into account. Fitting the present theory to experimental data, the interaction parameters of CsNiBr3 and CsMnI3 are determined.

Original languageEnglish
Pages (from-to)1799-1811
Number of pages13
Journaljournal of the physical society of japan
Volume65
Issue number6
DOIs
Publication statusPublished - 1996 Jan 1
Externally publishedYes

Keywords

  • ABX
  • CsMnI
  • CsNiBr
  • Diagonal interchain interaction
  • Easy-axis anisotropy
  • Electron spin resonance
  • Triangular antiferromagnet

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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