Shell Filling and Exchange Coupling in Metallic Single-Walled Carbon Nanotubes
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CitationLiang, Wenjie, Marc Bockrath, and Hongkun Park. 2002. “Shell Filling and Exchange Coupling in Metallic Single-Walled Carbon Nanotubes.” Physical Review Letters88 (12): 126801. https://doi.org/10.1103/PhysRevLett.88.126801.
AbstractWe report the characterization of electronic shell filling in metallic single-walled carbon nanotubes by low-temperature transport measurements. Nanotube quantum dots with average conductance similar to(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.
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