Powder inelastic neutron scattering of a spin-liquid candidate Ba<sub>3</sub>ZnRu<sub>2</sub>O<sub>9</sub>
ORAL
Abstract
Ba3ZnRu2O9 (BZRO) is a 6-H perovskite compound that contains triangular lattice layers of Ru5+ dimers, and was recently reported to have no signatures of long-range-magnetic-order down to 37 mK and therefore put forward as a spin-liquid candidate.[1] We present inelastic neutron scattering measurements on BZRO powder that show a magnetic feature with a momentum dependence that is similar to the Ru-magnetic-form-factor, a peak energy intensity at 25 meV, and no obvious dispersive character. This magnetic mode is then considered in the context of density functional theory calculations and magnetization measurements. Comparisons are then made to the historical work on the analogous Ba3CaRu2O9.[2]
[1] I. Terasaki, and co-authors, J. Phys. Soc. Jpn. 86, 033702 (2017) [4 Pages]
[2] J. Darriet, and co-authors, J. Phys. Chem. Solids 44 (1983) pp. 269-212.
[1] I. Terasaki, and co-authors, J. Phys. Soc. Jpn. 86, 033702 (2017) [4 Pages]
[2] J. Darriet, and co-authors, J. Phys. Chem. Solids 44 (1983) pp. 269-212.
*This research used resources at the Spallation Neutron Source and High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.
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Presenters
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Daniel Pajerowski
- Oak Ridge National Laboratory
- Oak Ridge National Lab