Electron Spin Resonance of the Interacting Spinon Liquid
Electron Spin Resonance of the Interacting Spinon Liquid
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DOI：
10.1103/physrevlett.128.187202
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发表时间：
2022-05-06
影响因子：
8.6
通讯作者：
Starykh, Oleg A.
中科院分区：
文献类型：
--
作者：
Povarov, Kirill Yu.;Soldatov, Timofei A.;Starykh, Oleg A.
我们报告的实验验证最近预测的集体模式的自旋，稳定的背散射相互作用，在一个模型量子自旋链材料。我们利用K2 CuSO 4 Br 2中均匀的Dzyaloshinskiii-Moriya相互作用的独特几何结构来测量电子自旋共振（ESR）响应双峰的两个组件之间的相互作用诱导的分裂。从中我们直接确定？有点不相关？自旋子之间的反向散射相互作用。
We report experimental verification of the recently predicted collective modes of spinons, stabilized by backscattering interaction, in a model quantum spin chain material. We exploit the unique geometry of uniform Dzyaloshinskii-Moriya interactions in K2CuSO4Br2 to measure the interaction-induced splitting between the two components of the electron spin resonance (ESR) response doublet. From that we directly determine the magnitude of the ???marginally irrelevant??? backscattering interaction between spinons for the first time.