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STM observation of formation process of carbon nanotube from 6H-SiC (000-1)

Published online by Cambridge University Press:  26 February 2011

Takahiro Maruyama
Affiliation:
takamaru@ccmfs.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, 1-501 Shiogamatuchi, Tempaku, Nagoya, Aichi, 468-8502, Japan, +81-52-838-2386, +81-52-832-1172
Yasuyuki Kawamura
Affiliation:
m0434010@ccmailg.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Hyungjin Bang
Affiliation:
hj-bang@aist.go.jp, Meijo University, 21th COE Program "Nano Factory", Japan
Naomi Fujita
Affiliation:
a302z094@ccmailg.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Tomoyuki Shiraiwa
Affiliation:
a302z055@ccmailg.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Kenji Tanioku
Affiliation:
a302z068@ccmailg.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Yoko Hozumi
Affiliation:
a302z097@ccmailg.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Shigeya Naritsuka
Affiliation:
narit@ccmfs.meijo-u.ac.jp, Meijo University, Dept. of Materials Science and Engineering, Japan
Michiko Kusunoki
Affiliation:
kusunoki@jfcc.or.jp, Japan Fine Ceramics Center, Japan
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Abstract

Formation process of nanosized cap structures on a thermally treated 6H-SiC(000-1) substrate was investigated using atomic-resolution ultrahigh-vacuum scanning tunneling microscopy (UHV-STM). After formation of clusters of carobon particles 1-2 nanometer in diameter at 1150°C, these nanoparticles merged, forming nanosized cap structures. Hexagonal carbon networks, partly composed of pentagons, were clearly observed on the surface of the cap structures for a sample annealed above 1200°C. A model for the formation of carbon nanocaps on 6H-SiC(000-1) was proposed.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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References

1 Kusunoki, M., Rokkauku, M., and Suzuki, T., Appl. Phys. Lett. 71, 2620 (1997).CrossRefGoogle Scholar
2 Kusunoki, M., Suzuki, T., Honjo, C., Hirayama, T., Shibata, N., Chem. Phys. Lett. 366, 458 (2002).CrossRefGoogle Scholar
3 Kusunoki, M., Suzuki, T., Hirayama, T., Shibata, N., and Kaneko, K.: Appl. Phys. Lett. 77, 531 (2000).CrossRefGoogle Scholar
4 Hornetz, B., Michel, H.-J., and Halbritter, J., J. Vac. Sci. Technol. A 13, 767 (1995).CrossRefGoogle Scholar
5 Kusunoki, M., Suzuki, T., Kaneko, K., and Ito, M., Philos. Mag. Lett. 79, 153 (1999).CrossRefGoogle Scholar
6 Watanabe, H., Hisada, Y., Mukainakano, S., and Tanaka, N., J. Microsc. 203, 40 (2001).CrossRefGoogle Scholar

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