Electronic Density of States of Atomically Resolved Single-Walled Carbon Nanotubes: Van Hove Singularities and End States
نویسندگان
چکیده
The electronic densities of states of atomically resolved single-walled carbon nanotubes have been investigated using scanning tunneling microscopy. Peaks in the density of states due to the one-dimensional nanotube band structure have been characterized and compared with tight-binding calculations. In addition, tunneling spectroscopy measurements recorded along the axis of an atomically resolved nanotube were found to exhibit new, low-energy peaks in the density of states near the tube end. Calculations suggest that these features arise from the specific arrangement of carbon atoms that close the nanotube end. [S0031-9007(99)08406-9]
منابع مشابه
STM study of single - walled carbon nanotubes
The electronic density of states of atomically resolved single-walled carbon nanotubes (SWNTs) have been investigated using scanning tunneling microscopy (STM). Peaks in the density of states due to the one-dimensional nanotube band structure have been characterized and compared with the results of tight-binding calculations. 2000 Published by Elsevier Science Ltd.
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