Yukio Sato

TL;DR: In this paper, compressively strained SrTaO2N thin films were epitaxially grown on SrTiO3 substrates using nitrogen plasma-assisted pulsed laser deposition and Piezoresponse force microscopy measurements revealed small domains (101-102 nm) that exhibited classical ferroelectricity, a behaviour not previously observed in perovskite oxynitrides.

TL;DR: In this article, an annular bright field scanning transmission electron microscopy (ANNFLS) was used for direct imaging of hydrogen atomic columns within a sample of vanadium dihydride, VH2.

TL;DR: The role of Pr doping on double Schottky barrier formations at ZnO single grain boundaries was investigated by the combination of current-voltage measurements, atomic-resolution Z-contrast scanning transmission electron microscopy, and first-principles calculations.

TL;DR: In this paper, the relationship between the atomic structures and the electrical properties of ZnO single grain boundaries was investigated using bicrystals whose grain-boundary orientation relationship and grainboundary planes can be arbitrarily controlled.

TL;DR: It is demonstrated that water-infiltrated nanoporous glass electrically switches an oxide semiconductor from insulator to metal, which exhibits exotic thermoelectric behaviour.