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... 

【文章來源】：Chinese Physics Letters. 2017,34(07)SCICSCD

【文章頁數(shù)】：10 頁

【文章目錄】：
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



本文編號：3533667