EPR g-Shift and Anisotropic Magnetic Susceptibility in K 2 MnF 4
EPR g-Shift and Anisotropic Magnetic Susceptibility in K 2 MnF 4
复制标题
K 2 MnF 4 中的 EPR g 位移和各向异性磁化率
DOI：
10.1143/jpsj.43.857
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发表时间：
1977
影响因子：
1.7
通讯作者：
Y. Yokozawa
中科院分区：
文献类型：
--
作者：
K. Nagata;I. Yamamoto;H. Takano;Y. Yokozawa
本文报道了二次层状反铁磁体K2 MnF4中固定频率的电子顺磁共振（EPR）场随温度变化的实验和理论研究。从理论上证明了EPR场相对于无限温度极限值的位移（或EPR g位移）是平行和垂直磁化率的函数。理论的预测进行了比较与EPR和扭矩测量的结果上进行的单晶K2 MnF4在温度高于Neel点。获得了极好的一致性。
This paper reports the experimental and theoretical study on the temperature dependence of the electron paramagnetic resonance (EPR) field at fixed frequency in a quadratic layer antiferromagnet k 2 MnF 4 . The shift of EPR field (or EPR g-shift) from the value in the infinite temperature limit is theoretically shown to be a function of the parallel and perpendicular susceptibilities. The predictions of the theory are compared with the results of EPR and torque measurements performed on the single crystal of K 2 MnF 4 at temperatures above the Neel point. Excellent agreement is obtained.