Published March 25, 2002
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Journal Article
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Shell Filling and Exchange Coupling in Metallic Single-Walled Carbon Nanotubes
- Creators
- Liang, Wenjie
- Bockrath, Marc
-
Park, Hongkun
Chicago
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Abstract
We report the characterization of electronic shell filling in metallic single-walled carbon nanotubes by low-temperature transport measurements. Nanotube quantum dots with average conductance ∼(1–2)e^2/h exhibit a distinct four-electron periodicity for electron addition as well as signatures of Kondo and inelastic cotunneling. The Hartree-Fock parameters that govern the electronic structure of metallic nanotubes are determined from the analysis of transport data using a shell-filling model that incorporates the nanotube band structure and Coulomb and exchange interactions.
Additional Information
©1996 The American Physical Society Received 20 May 1996 We acknowledge C. M. Lieber, M. Tinkham, B. I. Halperin, and J. H. Hafner for discussions. This work is supported by NSF, DARPA, the Dreyfus Foundation, the Packard Foundation, the Research Corporation, and Harvard University. M. B. is partially supported by the Department of Physics, Harvard University. W. L. and M. B. contributed equally to this work.Files
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- CaltechAUTHORS:LIAprl02
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