  We report the first single crystal growth of the correlated metal LaNiO3
using a high-pressure optical-image floating zone furnace. The crystals were
studied using single crystal/powder x-ray diffraction, resistivity, specific
heat, and magnetic susceptibility. The availability of bulk LaNiO3 crystals
will (i) promote deep understanding in this correlated material, including the
mechanism of enhanced paramagnetic susceptibility, and (ii) provide rich
opportunities as a substrate for thin film growth such as important
ferroelectric and/or multiferroic materials. This study demonstrates the power
of high pO2 single crystal growth of nickelate perovskites and correlated
electron oxides more generally.
