高圧下における遷移金属酸化物の単結晶育成

Abstract

We have developed a new method to grow single crystals of transition metal oxides under high pressures of several GPa, using a cubic anvil press. Here in situ observations of the reactions under high pressures are performded by synchrotron powder X-ray diffrraction, to find out the optimum crystal growth conditions. We have succeeded in growing single crystals of various transition metal oxides such as PrNiO3 and the high pressure phase of (VO)2P2O7. We thus expect that the present high pressure technique plays more and more important roles to develop studies using single crystalline samples.