Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7

Hiroshi Takatsu; Hiroaki Kadowaki; Taku J. Sato; Jeffrey W. Lynn; Yoshikazu Tabata; Teruo Yamazaki; Kazuyuki Matsuhira

doi:10.1088/0953-8984/24/5/052201

Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7

Disordered Systems and Neural Networks 2011-12-13 v3 Strongly Correlated Electrons

Authors: Hiroshi Takatsu , Hiroaki Kadowaki , Taku J. Sato , Jeffrey W. Lynn , Yoshikazu Tabata , Teruo Yamazaki , Kazuyuki Matsuhira

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Abstract

Neutron scattering experiments on a polycrystalline sample of the frustrated pyrochlore magnet Tb2Ti2O7, which does not show any magnetic order down to 50 mK, have revealed that it shows condensation behavior below 0.4 K from a thermally fluctuating paramagnetic state to a spin-liquid ground-state with quantum spin fluctuations. Energy spectra change from quasielastic scattering to a continuum with a double-peak structure at energies of 0 and 0.8 K in the spin-liquid state. Specific heat shows an anomaly at the crossover temperature.

Keywords

spin excitations in condensed matter magnetic materials and spin systems unconventional superconductivity

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@article{arxiv.1106.3649,
  title  = {Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7},
  author = {Hiroshi Takatsu and Hiroaki Kadowaki and Taku J. Sato and Jeffrey W. Lynn and Yoshikazu Tabata and Teruo Yamazaki and Kazuyuki Matsuhira},
  journal= {arXiv preprint arXiv:1106.3649},
  year   = {2011}
}

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4 pages, 4 figures

Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7

Abstract

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