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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.122  No.1426 (June) (2014)  >  pp.456-459

Journal of the Ceramic Society of Japan
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Atomic-scale investigations of perovskite oxide heteroepitaxy

Takeo OHSAWA1) 2), Ryota SHIMIZU2), Katsuya IWAYA2), Susumu SHIRAKI2), Taro HITOSUGI2) 3)
1) National Institute for Materials Science (NIMS) 2) Advanced Institute for Materials Research (AIMR), Tohoku University 3) PRESTO, Japan Science and Technology Agency

We have developed a low-temperature, high-magnetic-field scanning tunneling microscope combined with pulsed laser deposition. This system enables us to study atomic-scale growth of oxide thin films. In this paper, we investigated growth-mode-controlled epitaxial SrTiO3 (STO) and LaAlO3 films on STO(001) single-crystal substrates. A (√13×√13)-R33.7° STO(001) substrate, prepared in oxygen atmosphere, is atomically resolved and plays a crucial role in elucidating the initial growth process. Atomic-scale microscopic approach performed in this study opens up a way to novel functionalities in oxide thin films and heterostructures.

Oxide film growth, Pulsed laser deposition, Scanning tunneling microscopy

Received: December 22, 2013
Accepted: February 17, 2014 , Published online: June 01, 2014
Copyright © 2014 The Ceramic Society of Japan



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