Power-law spin correlations in the pyrochlore antiferromagnet Tb 2Ti 2O 7

T. Fennell, M. Kenzelmann, B. Roessli, M. K. Haas, R. J. Cava

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We investigate the low-temperature state of the rare-earth pyrochlore Tb 2Ti 2O 7 using polarized neutron scattering. Tb 2Ti 2O 7 is often described as an antiferromagnetic spin liquid with spin correlations extending over lengths comparable to individual tetrahedra of the pyrochlore lattice. We confirm this picture at 20 K but find that at 0.05 K the data contain evidence of pinch-point scattering, suggesting that the low temperature state of Tb 2Ti 2O 7 has power-law spin correlations.

Original languageEnglish (US)
Article number017201
JournalPhysical review letters
Issue number1
StatePublished - Jul 3 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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