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
TL;DR
Neutron scattering reveals that Tb2Ti2O7 transitions from a paramagnetic state to a quantum spin-liquid state below 0.4 K, characterized by a continuum energy spectrum and specific heat anomalies, indicating quantum spin fluctuations.
Contribution
This study provides experimental evidence of quantum spin fluctuations and a spin-liquid ground state in Tb2Ti2O7 through neutron scattering and thermodynamic measurements.
Findings
Transition from quasielastic to continuum scattering below 0.4 K
Observation of a double-peak energy spectrum in the spin-liquid state
Specific heat anomaly at the crossover temperature
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.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.