Imaging Electron Wave Functions of Quantized Energy Levels in Carbon Nanotubes

Details Imaging Electron Wave Functions of Quantized Energy Levels in Carbon Nanotubes Imaging Electron Wave Functions of Quantized Energy Levels in Carbon Nanotubes

1998-11-23

arxiv.org/abs/cond-mat/9811317v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 4 figures in seperate PDF file

Scientific paper

10.1126/science.283.5398.52

Carbon nanotubes provide a unique system to study one-dimensional quantization phenomena. Scanning tunneling microscopy is used to observe the electronic wave functions that correspond to quantized energy levels in short metallic carbon nanotubes. Discrete electron waves are apparent from periodic oscillations in the differential conductance as a function of the position along the tube axis, with a period that differs from that of the atomic lattice. Wave functions can be observed for several electron states at adjacent discrete energies. The measured wavelengths are in good agreement with the calculated Fermi wavelength for armchair nanotubes.

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