Gapped Spin-1/2 Spinon Excitations in a New Kagome Quantum S

发布时间：2021-12-11 00:22

　　We report a new kagome quantum spin liquid candidate Cu₃ Zn（OH）₆ FBr, which does not experience any phase transition down to 50 mK, more than three orders lower than the antiferromagnetic Curie-Weiss temperature（²00 K）. A clear gap opening at low temperature is observed in the uniform spin susceptibility obtained from¹⁹F nuclear magnetic resonance measurements. We observe the characteristic magnetic field dependence of the gap as expected for fractiona... 

【文章来源】：Chinese Physics Letters. 2017,34(07)SCICSCD

【文章页数】：10 页

【文章目录】：
1. Fitting of the Knight shift data
2. Knight shift and magnetic susceptibility as a function of temperature
3. No contribution from free spins evidenced by spectra with differentτ
4. AC susceptibility at different frequencies



本文编号：3533667