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Updated: Aug 19, 2026

Simultaneous Synthesis of Single-walled Carbon Nanotubes and Graphene in a Magnetically-enhanced Arc Plasma
Published on: February 2, 2012
Magnetism of transition-metal/carbon-nanotube hybrid structures
Chih-Kai Yang1, Jijun Zhao, Jian Ping Lu
1Center for General Education, Chang Gung University, Kueishan, Taiwan 333, Republic of China.
Abstract:
It has long been established that by filling carbon nanotubes or coating on their surfaces with tran-sition metals, one-dimensional hybrid nanostructures can be synthesized. We found through ab initio calculations that such transition-metal/nanotube hybrid structures exhibit substantial magnetism. In particular, cobalt atoms packed inside a variety of carbon nanotubes offer strong spin polarization at the Fermi level as well as considerable magnetic moments. The results point to a new and promising approach that uses such metal-filled carbon nanotubes as devices for spin-polarized transport and to potential applications in the emerging field of spintronics.
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