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

doi:10.1143/JPSJ.65.1799

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

IMR - High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

12 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 language	English
Pages (from-to)	1799-1811
Number of pages	13
Journal	Journal of the Physical Society of Japan
Volume	65
Issue number	6
DOIs	https://doi.org/10.1143/JPSJ.65.1799
Publication status	Published - 1996

Keywords

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

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10.1143/JPSJ.65.1799

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title = "Effects of Diagonal Interchain Exchange Interaction on the ESR Modes of ABX3-Type Triangular Antiferromagnets",

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.",

keywords = "ABX, CsMnI, CsNiBr, Diagonal interchain interaction, Easy-axis anisotropy, Electron spin resonance, Triangular antiferromagnet",

author = "Takashi Kambe and Hidekazu Tanaka and Shojiro Kimura and Hitoshi Ohta and Mitsuhiro Motokawa and Kazukiyo Nagata",

year = "1996",

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pages = "1799--1811",

journal = "Journal of the Physical Society of Japan",

issn = "0031-9015",

publisher = "The Physical Society of Japan",

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TY - JOUR

T1 - Effects of Diagonal Interchain Exchange Interaction on the ESR Modes of ABX3-Type Triangular Antiferromagnets

AU - Kambe, Takashi

AU - Tanaka, Hidekazu

AU - Kimura, Shojiro

AU - Ohta, Hitoshi

AU - Motokawa, Mitsuhiro

AU - Nagata, Kazukiyo

PY - 1996

Y1 - 1996

N2 - 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.

AB - 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.

KW - ABX

KW - CsMnI

KW - CsNiBr

KW - Diagonal interchain interaction

KW - Easy-axis anisotropy

KW - Electron spin resonance

KW - Triangular antiferromagnet

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JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

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

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Keywords

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