High-Field and Multifrequency ESR in the Two-Dimensional Triangular Lattice Antiferromagnet NiGa2S4

被引：0
|
作者：
Hironori Yamaguchi
Shojiro Kimura
Masayuki Hagiwara
Yusuke Nambu
Satoru Nakatsuji
Yoshiteru Maeno
Koichi Kindo
机构：
[1] Osaka University,KYOKUGEN (Center for Quantum Science and Technology under Extreme Conditions)
[2] University of Tokyo,Institute for Solid State Physics
[3] Kyoto University,Department of Physics
来源：
Applied Magnetic Resonance | 2009年 / 36卷
关键词：
Electron Spin Resonance; Resonance Mode; Nuclear Quadrupole Resonance; Electron Spin Resonance Measurement; Resonance Field;
D O I：
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中图分类号：
学科分类号：
摘要：
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∥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.
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页码：285 / 289
页数：4
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