期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 24, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/24/5/052201
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资金
- KAKENHI on Priority Areas 'Novel States of Matter Induced by Frustration'
- US-Japan Cooperative Program on Neutron Scattering
- Grants-in-Aid for Scientific Research [19052005, 22014010] Funding Source: KAKEN
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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