2017.03.31

Possibility for next-generation material with superconductivity?

A group of scientists, including Professor Takashi Mizokawa from Department of Applied Physics, succeeded in synthesizing perovskite oxide PbCoO₃, an oxide (O₃) mineral in which oxygen is combined with lead (Pb) and cobalt (Co). They also discovered a charge distribution never seen before, where both lead and cobalt had charge orderings, by controlling the energy levels of lead and cobalt. In an experiment using X-ray radiation and neutron beams, its charge ordering structure was also revealed. These findings present a new strategy for mixing valence states in single-phase oxides, possibly producing next-generation materials with properties such as superconductivity without it being resistant to large magnetic force or have high thermopower. ＜MORE＞