New STM Image of Carbon During Graphitization, "Ring-like Superstructure".
نویسندگان
چکیده
منابع مشابه
Stm and Afm Investigation of Carbon Nanotubes
Carbon nanotubes are a new allotrope of carbon which emerged from the fullerene family [1]. Carbon nanotubes have been discovered by high resolution transmission electron microscopy (HRTEM) in 1991 by Iijima [2]. A single wall carbon nanotube is constituted of one atomic plane with a graphite-like arrangement of C atoms – called a graphene sheet – which is perfectly rolled into a cylinder (Fig....
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This topical review summarizes scanning tunneling microscopy investigations of the electronic properties of single-walled carbon nanotubes (SWNTs). First, the unique relationship between the atomic structure and electronic properties of SWNTs is reviewed. Second, the one-dimensional electronic band structure of SWNTs is introduced, and a comparison of tunneling spectroscopy to tightbinding calc...
متن کاملSTM 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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Single-wall carbon nanotubes (SWNTs) prepared on the graphite substrate were investigated by a low-temperature scanning tunneling microscope at 77K. From the tunneling spectra with high-energy resolution obtained at 77K, both metallic and semiconducting SWNTs were found in the same bundle. For the metallic SWNT, the conductance curve inside the first peak is finite and quite flat. The width bet...
متن کاملModeling of graphitization kinetics during peritectic melting of tungsten carbide
A dynamic computational model developed within the context of the classical theory of phase evolution is applied to the W–C system to simulate the kinetics of graphite nucleation during non-equilibrium peritectic melting of WC. The kinetic variables used in the model are obtained directly from the free energy formulations that characterize the stable and metastable equilibria between WC, liquid...
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ژورنال
عنوان ژورنال: Materia Japan
سال: 1999
ISSN: 1340-2625,1884-5843
DOI: 10.2320/materia.38.225