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148 R. S. RUOFF and D. C. LORENTS
buckling be accommodated on the surface of a carbon ence and Technology, The Ministry of International Trade
nanotube? For a MWNT, it seems very unlikely that and Industry, Japan.
the outer tube can buckle in this way, because of the
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Acknowledgements-The authors are indebted to S. Subra- 25. K. Tanaka, T. Sato, T. Yamake, K. Okahara, K. Vehida,
money for the TEM photographs. Part of this work was con- M. Yumura, N. Niino, S. Ohshima, Y. Kuriki, K. Yase,
ducted in the program, “Advanced Chemical Processing and F. Ikazaki. Chem. Phys. Lett. 223, 65 (1994).
Technology,” consigned to the Advanced Chemical Process- 26. E. Dujardin, T. W. Ebbesen, H. Him, and K. Tanigaki,
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