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

Author(s): Fennell, Tom; Kenzelmann, Michel; Roessli, Bertrand; Haas, M. K.; Cava, Robert Joseph

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Abstract: 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. © 2012 American Physical Society.
Publication Date: Jul-2012
Electronic Publication Date: 3-Jul-2012
Citation: Fennell, T., Kenzelmann, M., Roessli, B., Haas, M.K., Cava, RJ. (2012). Power-Law Spin Correlations in the Pyrochlore Antiferromagnet. Physical Review Letters, 109 (1), 10.1103/PhysRevLett.109.017201
DOI: doi:10.1103/PhysRevLett.109.017201
ISSN: 0031-9007
EISSN: 1079-7114
Pages: 109.1:017201-1 - 017201-5
Type of Material: Journal Article
Journal/Proceeding Title: Physical Review Letters
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.
Notes: Physical Review Letters. Volume 109, Issue 1, 3 July 2012, Article number 017201.

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