Magnetic correlations in the spin-liquid state of Tb2Hf2O7, the forgotten analogue of the Tb2Ti2O7 puzzle
After 15 years of intense research efforts on Tb2Ti2O7 Ising antiferromagnet pyrochlore, its low-temperature spin-liquid state with power-law spin correlations and magnetoelastic excitations remains quite enigmatic. We are working on the characterization of a related compound, Tb2Hf2O7, for which we conduct a set of experiments based on neutron, synchrotron and muon radiations. As its titanate counterpart, Tb2Hf2O7 does not order down to the lowest investigated temperatures but presents significant differences with it. We want to characterize the spin correlations in Tb2Hf2O7 at very low temperature, capitalizing on the recent success of such measurements on the related dipolar spin-ice Ho2Ti2O7 and on spin-liquid Tb2Ti2O7.
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Romain Sibille; FENNELL Tom; KENZELMANN Michel; LHOTEL Elsa and NILSEN Goran. (2015). Magnetic correlations in the spin-liquid state of Tb2Hf2O7, the forgotten analogue of the Tb2Ti2O7 puzzle. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-53-248
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