Journal
PHYSICAL REVIEW B
Volume 70, Issue 18, Pages -Publisher
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevB.70.180404
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Polarized neutron diffraction and neutron spin echo have been employed to investigate the low-temperature (T<2 K) magnetic correlations in the frustrated magnet Yb2Ti2O7. Several studies have reported a phase transition at 240 mK, however, the low-temperature phase is still under debate. It has been reported that Yb2Ti2O7 enters a frozen ferromagnetic phase, however, studies of the spin dynamics suggest otherwise. Our results conclusively rule out a frozen ferromagnetic state and confirm that the majority of the spin system continues to fluctuate below 240 mK.
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