Imaging electron wave functions of quantized energy levels in carbon nanotubes
Imaging electron wave functions of quantized energy levels in carbon nanotubes
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DOI：
10.1126/science.283.5398.52
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发表时间：
1998-11
期刊：
影响因子：
56.9
通讯作者：
Liesbeth C. Venema;J. W. G. Wildoer;J. Janssen;S. Tans;H.L.J.T. Tuinstra;L. Kouwenhoven;Cees Dekker
中科院分区：
文献类型：
--
作者：
Liesbeth C. Venema;J. W. G. Wildoer;J. Janssen;S. Tans;H.L.J.T. Tuinstra;L. Kouwenhoven;Cees Dekker
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.
