Mapping the One-Dimensional Electronic States of Nanotube Peapod Structures

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Science  01 Feb 2002:
Vol. 295, Issue 5556, pp. 828-831
DOI: 10.1126/science.1068133

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Arrays of C60 molecules nested inside single-walled nanotubes represent a class of nanoscale materials having tunable properties. We report electronic measurements of this system made with a scanning tunneling microscope and demonstrate that the encapsulated C60 molecules modify the local electronic structure of the nanotube. Our measurements and calculations also show that a periodic array of C60 molecules gives rise to a hybrid electronic band, which derives its character from both the nanotube states and the C60 molecular orbitals.

  • * Present address: Department of Physics, Soongsil University, Seoul, Korea.

  • To whom correspondence should be addressed. E-mail: ayazdani{at}

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