Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets.

@article{Gingras2014QuantumSI,
  title={Quantum spin ice: a search for gapless quantum spin liquids in pyrochlore magnets.},
  author={Michel J. P. Gingras and Paul A. McClarty},
  journal={Reports on progress in physics. Physical Society},
  year={2014},
  volume={77 5},
  pages={
          056501
        }
}
  • M. Gingras, P. McClarty
  • Published 7 November 2013
  • Physics, Medicine
  • Reports on progress in physics. Physical Society
The spin ice materials, including Ho2Ti2O7 and Dy2Ti2O7, are rare-earth pyrochlore magnets which, at low temperatures, enter a constrained paramagnetic state with an emergent gauge freedom. Spin ices provide one of very few experimentally realized examples of fractionalization because their elementary excitations can be regarded as magnetic monopoles and, over some temperature range, spin ice materials are best described as liquids of these emergent charges. In the presence of quantum… Expand
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Evidence of a Higgs transition from a magnetic Coulomb liquid to a ferromagnet in single-crystal Yb2Ti2O7 is reported, which is explained on the basis of a quantum spin-ice model, whose high-temperature phase is effectively described as a magnetism liquid, whereas the ground state shows a nearly collinear ferromaggnetism with gapped spin excitations. Expand
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