A new high pressure form of Ba3NiSb2O9

  title={A new high pressure form of Ba3NiSb2O9},
  author={C{\'e}line Darie and Christophe Lepoittevin and Holger Klein and St{\'e}phanie Kodjikian and Pierre Bordet and Claire V. Colin and Oleg I. Lebedev and Catherine Deudon and Christophe Payen},
  journal={Journal of Solid State Chemistry},
In the search of an experimental realization of quantum spin liquid phases we have synthesized polycrystalline samples of Ba3NiSb2O9 under high pressure-high temperature conditions. Combining X-ray powder diffraction, neutron powder diffraction and precession electron diffraction we show that the obtained phase isn't hexagonal as reported in the literature, but trigonal. This new structure shows triangular Ni planes, but only in domains of sizes of the order of 10 nm. It therefore is still… 
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