Fullerene based devices for molecular electronics

Details Fullerene based devices for molecular electronics Fullerene based devices for molecular electronics

2001-08-23

arxiv.org/abs/cond-mat/0108377v1

Physica E 12, 749 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures, to appear in Physica E

Scientific paper

10.1016/S1386-9477(01)00469-6

We have investigated the electronic properties of a C_60 molecule in between carbon nanotube leads. This problem has been tackled within a quantum chemical treatment utilizing a density functional theory-based LCAO approach combined with the Landauer formalism. Owing to low-dimensionality, electron transport is very sensitive to the strength and geometry of interfacial bonds. Molecular contact between interfacial atoms and electrodes gives rise to a complex conductance dependence on the electron energy exhibiting spectral features of both the molecule and electrodes. These are attributed to the electronic structure of the C_60 molecule and to the local density of states of the leads, respectively.

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