English

Spin liquid correlations, anisotropic exchange and symmetry breaking in Tb2Ti2O7

Strongly Correlated Electrons 2015-06-11 v1
Authors: Sylvain Petit , Pierre Bonville , Julien Robert , Claudia Decorse , Isabelle Mirebeau
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Abstract

We have studied the low energy spin dynamics between 4.6K and 0.07K in a Tb2Ti2O7 single crystal sample, by means of inelastic neutron scattering experiments. The spectra consist in a dual response, with a static and an inelastic contribution, showing striking Q-dependences. We propose an interpretation involving an anisotropic exchange interaction in combination with a breaking of the threefold symmetry at the rare earth site. Simulations of the Q-dependent scattering in the Random Phase Approximation account well for the inelastic response.

Keywords

spin excitations in condensed matter quantum spin liquids spin-orbit coupling

Cite

@article{arxiv.1210.1428,
  title  = {Spin liquid correlations, anisotropic exchange and symmetry breaking in Tb2Ti2O7},
  author = {Sylvain Petit and Pierre Bonville and Julien Robert and Claudia Decorse and Isabelle Mirebeau},
  journal= {arXiv preprint arXiv:1210.1428},
  year   = {2015}
}

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