• Corpus ID: 218972059

Observation of a gapless spin liquid in a diluted Kitaev honeycomb material

@article{Baek2020ObservationOA,
  title={Observation of a gapless spin liquid in a diluted Kitaev honeycomb material},
  author={S-H Baek and Hyeon Woo Yeo and Seung-Hwan Do and Kwang-Yong Choi and Lukas Janssen and Matthias Vojta and Bernd Buchner},
  journal={arXiv: Strongly Correlated Electrons},
  year={2020}
}
We report a $^{35}$Cl nuclear magnetic resonance (NMR) study of the diluted Kitaev material $\alpha$-Ru$_{1-x}$Ir$_x$Cl$_3$ ($x=0.1$ and $0.2$) where non-magnetic Ir$^{3+}$ dopants substitute Ru$^{3+}$ ions. Upon dilution, the $^{35}$Cl spectra exhibit unusual large magnetic inhomogeneity, which sets in at temperatures below the Kitaev exchange energy scale. At the same time, the $^{35}$Cl spin-lattice relaxation rate $T_1^{-1}$ as a function of dilution and magnetic field unravels a critical… 
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