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Quantum Spin Ice with Frustrated Transverse Exchange: From a π -Flux Phase to a Nematic Quantum Spin Liquid

  • Author(s): Benton, O
  • Jaubert, LDC
  • Singh, RRP
  • Oitmaa, J
  • Shannon, N
  • et al.

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© 2018 American Physical Society. Quantum spin ice materials, pyrochlore magnets with competing Ising and transverse exchange interactions, have been widely discussed as candidates for a quantum spin-liquid ground state. Here, motivated by quantum chemical calculations for Pr pyrochlores, we present the results of a study for frustrated transverse exchange. Using a combination of variational calculations, exact diagonalization, numerical linked-cluster and series expansions, we find that the previously studied U(1) quantum spin liquid, in its π-flux phase, transforms into a nematic quantum spin liquid at a high-symmetry, SU(2) point.

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