Diamagnetic Susceptibility of Multiwall Carbon Nanotubes with Open and Closed Ends

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概要

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• The diamagnetic susceptibility of multiwall carbon nanotubes with open and closed ends is measured as a function of temperature between liquid helium and room temperatures. A $\lambda$-shaped temperature dependence of magnetic susceptibility is observed at around 40 K, in particular, for the specimen with open ends. Repeating the measurements results in a decrease in the peak height and also in flattening the peak. This implies that alignment of the tube axis in parallel to the magnetic field is responsible for this result. Therefore, the $\lambda$-shaped temperature dependence is considered to be characteristic of magnetic susceptibility measured in a field perpendicular to the tube axis.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-10-15

著者

• Kawamura Kiyoshi

  Department Of Electrical Engineering College Of Science And Technology Nihon University

• Muramatsu Naoki

  Department of Electrical Engineering, College of Science and Technology, Nihon University, 1-8-14 Kanda Surugadai, Chiyoda-ku, Tokyo 101-8308, Japan

• Kawamura Kiyoshi

  Department of Chemistry, Faculty of Science, Kyoto University

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