Size, density, and shape of InAs quantum dots in closely stacked multilayers grown by the Stranski-Krastanow mode
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概要
- 論文の詳細を見る
Closely stacked multilayer structures of InAs islands with intermediate-layer thicknesses d of 3, 6, 10, and 20 nm were grown by the Stranski-Krastanow mode of molecular beam epitaxy and were observed using transmission electron microscopy (TEM) and atomic force microscopy (AFM). The multilayers consisted of five InAs layers each of a thickness of 1.8 monolayers and four GaAs layers each of a thickness d. Columns of coherent islands were observed by cross-sectional TEM. Changes in the size and density of the islands with d, determined by AFM, could be explained in terms of (i) change in the vertical pairing probability of islands, (ii) detachment of In from the top of the island, and (iii) surface segregation of In. The observed AFM images of the islands were elliptical. Their major axis was in the [110] direction, and the length of the minor axis was 80% of that of the major axis.
- American Vacuum Societyの論文
著者
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YOKOYAMA Naoki
Fujitsu Laboratories Ltd.
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武藤 真三
山梨大学工学部
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NAKATA Yoshiaki
Fujitsu Laboratories Ltd.
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Nakata Y
Fujitsu Ltd. Atsugi Jpn
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武藤 俊介
大阪大学教養部
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Shiramine Ken-ichi
Department Of Applied Physics Hokkaido University
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Muto Shigeki
Department Of Physics School Of Science Tokai University
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武藤 真三
山梨大学
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Nishikawa Y
Toshiba Corp. Kawasaki Jpn
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Nishikawa Y
Materials And Devices Research Laboratories Toshiba Corporation
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Nishikawa Yukie
Advanced Lsi Technology Laboratory Corporate Research & Development Center Toshiba Corporation
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Nishikawa Yukie
Corporate Research & Development Center Toshiba Corporation
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Muto S
Kek Ibaraki
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Yokoyama Naoki
Department of Pediatrics, Kobe University Graduate School of Medicine
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Nakata Y
Fujitsu Laboratories Ltd.
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Yokoyama N
Fujitsu Laboratories Ltd.
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小崎 完
北大
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Kozaki Tamotsu
Hokkaido University Graduate School Of Engineering Division Of Energy And Environmental Systems
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Kozaki T
Div. Of Energy And Environmental Systems Graduate School Of Engineering Hokkaido Univ.
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Kozaki Tamotsu
Division Of Energy And Environmental Systems Graduate School Of Engineering Hokkaido University
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Muto Shinzo
Department Of Electrical Engineering And Computer Science Faculty Of Engineering Yamanashi Universit
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武藤 俊介
名古屋大学
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Yokoyama Naoki
Institute For Nano Quantum Information Electronics The University Of Tokyo
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