"Search for magnetic and conductive ruthenates using hydrothermal synthesis"
It often happens that discovery of a new material triggers discovery of a new phenomenon. Since the discovery of the High-Tc superconductive copper oxide, transition-metal oxides (TMOs) have attracted increasing attention of many physicists because of their exotic physical properties characteristic in highly-correlated electron system.
I have been interested in hydrothermal synthesis because it is one of the powerful methods for obtaining single crystals of TMOs, although the reaction mechanism has been not fully understood. After many attempts, we have succeeded in synthesizing several novel TMOs containing 3d, 4d, and 5d transition elements. In this seminar, I will talk about their structural, magnetic and electron-transport properties, focusing on ruthenates (Ru oxides).