Disorder-Induced Mimicry of a Spin Liquid in YbMgGaO_{4}.

@article{Zhu2017DisorderInducedMO,
  title={Disorder-Induced Mimicry of a Spin Liquid in YbMgGaO_\{4\}.},
  author={Zhenyue Zhu and Pavel A. Maksimov and Steven R White and Alexander L Chernyshev},
  journal={Physical review letters},
  year={2017},
  volume={119 15},
  pages={157201}
}
We suggest that a randomization of the pseudodipolar interaction in the spin-orbit-generated low-energy Hamiltonian of YbMgGaO_{4} due to an inhomogeneous charge environment from a natural mixing of Mg^{2+} and Ga^{3+} can give rise to orientational spin disorder and mimic a spin-liquid-like state. In the absence of such quenched disorder, 1/S and density matrix renormalization group calculations both show robust ordered states for the physically relevant phases of the model. Our scenario is… CONTINUE READING
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