High-field and multifrequency esr in the two-dimensional triangular lattice antiferromagnet niga2s4

Hironori Yamaguchi, Shojiro Kimura, Masayuki Hagiwara, Yusuke Nambu, Satoru Nakatsuji, Yoshiteru Maeno, Koichi Kindo

研究成果: Article査読

抄録

We report the experimental results of electron spin resonance in high magnetic fields up to about 53 T on the quasi-two-dimensional triangular lattice antiferromagnet NiGa2S4. The temperature dependence of the resonance field at 584.8 GHz shows a steep change below about 30 K, indicating a development of the short-range correlation. The frequency dependence of the resonance field at the lowest temperature for H{pipe}{pipe}c is explained by one of the helical resonance modes. These experimental results suggest that the short-range order is well developed at low temperatures, and the resonance mode is described by a conventional spin wave theory.

本文言語English
ページ(範囲)285-289
ページ数5
ジャーナルApplied Magnetic Resonance
36
2-4
DOI
出版ステータスPublished - 2009 10 16
外部発表はい

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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