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Molecular Layer Epitaxy of Perovskite-Based Oxides by Laser MBE

Published online by Cambridge University Press:  15 February 2011

M. Yoshimoto ,
T. Maeda ,
S. Gonda ,
K. Shimozono ,
H. Koinuma ,
O. Ishiyama  and
M. Shinohara
M. Yoshimoto
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
T. Maeda
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
S. Gonda
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
K. Shimozono
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
H. Koinuma
Affiliation:
Research Laboratory of Engineering Materials, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 227, Japan
O. Ishiyama
Affiliation:
Keihanna Research Laboratory, Shimadzu Corp., Seika-cho, Kyoto 619-02, Japan
M. Shinohara
Affiliation:
Keihanna Research Laboratory, Shimadzu Corp., Seika-cho, Kyoto 619-02, Japan
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Abstract

Molecular layer epitaxy and the topmost surface structure in laser MBE of perovskite and other related oxides were investigated by in situ RHEED, in situ angle-resolved XPS (ARXPS) and ex situ co-axial ISS (CAICISS) analyses. Two-dimensional epitaxial growths of SrTiO3 (001) and BaCuO2(001) on SrTiO3(001) substrate were achieved by optimizing the growth conditions. Periodicities of RHEED oscillation corresponded well to the growth of a repeating unit cell (molecular layer). ARXPS and CAICISS spectra revealed that (Sr-0) atomic plane came at the top of SrTiO3(001) film growing on SrTiO3 (001) substrate with (Ti-O) atomic plane on the top. This indicates the structural conversion of the topmost atomic layer from TiO2 to SrO occurred during the SrTiO3 homoepitaxial growth.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 341: Symposium F – Epitaxial Oxide Thin Films and Heterostructures , 1994 , 133
Copyright
Copyright © Materials Research Society 1994

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References

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