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arXiv · 1106.3649

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
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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.

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Hiroshi Takatsu, Hiroaki Kadowaki, Taku J. Sato, Jeffrey W. Lynn, Yoshikazu Tabata, Teruo Yamazaki, Kazuyuki Matsuhira. 2011-12-10. Quantum spin fluctuations in the spin liquid state of Tb2Ti2O7. https://doi.org/10.1088/0953-8984%2F24%2F5%2F052201

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