Sought-after single crystals of LaNiO₃ were grown recently at the Kirchhoff Institute for Physics, Heidelberg University by means of the optical floating-zone method at oxygen pressures of 40 and 80 bar using a ScIDre HKZ furnace. The magnetic analysis of the samples indicates that long-range magnetic order is not intrinsic and most likely arising due to oxygen deficient phases.

https://www.sciencedirect.com/science/article/pii/S0022024819303720