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Spin magnetism of finite length zigzag carbon nanotubes

✍ Scribed by M.M. Mestechkin

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
163 KB
Volume
382
Category
Article
ISSN
0921-4526

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✦ Synopsis

By means of model calculations, it is shown that finite zigzag carbon nanotubes with large enough length and diameter possess a ground state with the parallel spin orientation of all electrons, occupying quasi-degenerate (hyperbolic) levels. This trend is weakly affected by the electron interaction, removing orbital degeneracy, and also by the external (ionic crystal) potential. The dependence of total energy on the molecular spin is calculated for carbon nanotubes attached to the neutral surfaces of SiO 2 (1 1 0), CdS (1120), and CdTe (1 1 0) crystals.

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✍ Mayumi Kosaka; Thomas W. Ebbesen; Hidefumi Hiura; Katsumi Tanigaki πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 338 KB

The electron spin resonance (ESR) of carbon nanotubes at various stages of purification have been measured between 4 and 296 K The conduction electron spin resonance is identified and the results imply that metallic and/or narrow gap semiconducting nanotubes are actually present as predicted by theo