Local electronic properties of carbon nanotube heterojunctions
Citation:
Ferreira, M. S.; Dargam, T. G.; Muniz, R. B.; Latge, A., Local electronic properties of carbon nanotube heterojunctions, Phys. Rev. B, 62, 2000, 16040-Download Item:
Abstract:
Local electronic properties of metallic-semiconducting carbon nanotube heterostructures are investigated by
studying the behavior of the one-electron local density of states ~LDOS! along the tubes. We determine how
these properties change from the metallic to the semiconducting side of a nanotube junction. We show that
Friedel oscillations may not always be evident on the metallic side, and we found clear exponential decay of
the LDOS on the semiconducting side. The exponential rates of decay as well as the absence of the oscillations
are explained in terms of a simple picture that relates the LDOS to the bulk electronic structure of the
constituent parts of the heterostructures.
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http://people.tcd.ie/ferreirmDescription:
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Author: FERREIRA, MAURO
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Phys. Rev. B62
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