1. A. Thess, P. Nikolaev, H. Dai, C. Xu, A. G. Rinzler, D. T. Colbert, G. E. Scuseria, R. E. Smalley, Center for Nanoscale Science and Technology, Rice Quantum Institute, and Departments of Chemistry and Physics, Mail Stop 100, Rice University, Post Office Box 1892, Houston, TX 77251, USA.
2. R. Lee and J. E. Fischer, Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104-6272, USA.
3. P. Petit and J. Robert, Institut Charles Sadron, 6 rue Boussingault, 67000 Strasbourg, France.
4. Y. H. Lee, S. G. Kim, D. Tománek, Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824-1116, USA.