Imaging electron wave functions of quantized energy levels in carbon nanotubes
نویسندگان
چکیده
Carbon nanotubes provide a unique system for studying one-dimensional quantization phenomena. Scanning tunneling microscopy was used to observe the electronic wave functions that correspond to quantized energy levels in short metallic carbon nanotubes. Discrete electron waves were apparent from periodic oscillations in the differential conductance as a function of the position along the tube axis, with a period that differed from that of the atomic lattice. Wave functions could 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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ورودعنوان ژورنال:
- Science
دوره 283 5398 شماره
صفحات -
تاریخ انتشار 1999