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arXiv · 0812.3883

Electron Scattering in Intrananotube Quantum Dots

G. Buchs·D. Bercioux·P. Ruffieux·P. Groening·H. Grabert·O. Groening
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Abstract

Intratube quantum dots showing particle-in-a-box-like states with level spacings up to 200meV are realized in metallic single-walled carbon nanotubes by means of low dose medium energy Ar irradiation. Fourier transform scanning tunneling spectroscopy compared to results of a Fabry-Perot electron resonator model yields clear signatures for inter- and intra-valley scattering of electrons confined between consecutive irradiation-induced defects (inter-defects distance < 10nm). Effects arising from lifting the degeneracy of the Dirac cones within the first Brillouin zone are also observed.

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G. Buchs, D. Bercioux, P. Ruffieux, P. Groening, H. Grabert, O. Groening. 2009-07-06. Electron Scattering in Intrananotube Quantum Dots. https://doi.org/10.1103/physrevlett.102.245505

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