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Semiconducting carbon nanotube quantum dots: Calculation of the interacting electron states by exact diagonalisation

By Mervyn Roy and P. A. Maksym

Abstract

In semiconducting carbon nanotube quantum dots that contain a few interacting electrons the electron-electron correlation is always important. The states of up to six interacting electrons in such a dot are calculated by exact diagonalisation of a 2-band, effective mass Hamiltonian. The addition energy and the few-electron density are investigated for a wide range of dots with different physical properties and, in a large proportion of these dots, the electrons are found to form Wigner molecules

Publisher: EDP Sciences
Year: 2009
DOI identifier: 10.1209/0295-5075
OAI identifier: oai:lra.le.ac.uk:2381/7499
Journal:

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