Influence of Rapid Thermal Annealing and Substrate Terrace Width on Self-Organizing Formation of Periodic Straight Nanogroove Array on NiO(111) Epitaxial Thin Film
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概要
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Room-temperature-grown NiO(111) epitaxial thin films on atomically stepped sapphire (0001) substrates by pulsed laser deposition have straight atomic steps. For a terrace width of about 50 nm, a periodic straight nanogroove array with a depth of about 6 nm was formed over the film surface after rapid thermal annealing. When using a substrate with a terrace width of about 250 nm, it is observed that two types of 180°-rotated triangular crystalline domain are alternately grown on each film terrace divided by the nanogrooves.
- 2012-06-25
著者
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Yamauchi Ryosuke
Department Of Innovative And Engineered Materials Tokyo Institute Of Technology
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Matsuda Akifumi
Department of Innovative and Engineered Materials, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-R3-6 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
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Yoshimoto Mamoru
Department of Innovative & Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Koyama Koji
Namiki Precision Jewel Co., Ltd., Adachi, Tokyo 123-8511, Japan
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Kaneko Satoru
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Yamauchi Ryosuke
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Tan Geng
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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Shiojiri Daishi
Department of Innovative and Engineered Materials, Tokyo Institute of Technology, Yokohama 226-8503, Japan
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