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Zero-bias conductance in carbon nanotube quantum dots.

Publication ,  Journal Article
Anders, FB; Logan, DE; Galpin, MR; Finkelstein, G
Published in: Physical review letters
February 2008

We present numerical renormalization group calculations for the zero-bias conductance of quantum dots made from semiconducting carbon nanotubes. These explain and reproduce the thermal evolution of the conductance for different groups of orbitals, as the dot-lead tunnel coupling is varied and the system evolves from correlated Kondo behavior to more weakly correlated regimes. For integer fillings N=1, 2, 3 of an SU(4) model, we find universal scaling behavior of the conductance that is distinct from the standard SU(2) universal conductance, and concurs quantitatively with experiment. Our results also agree qualitatively with experimental differential conductance maps.

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2008

Volume

100

Issue

8

Start / End Page

086809

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Anders, F. B., Logan, D. E., Galpin, M. R., & Finkelstein, G. (2008). Zero-bias conductance in carbon nanotube quantum dots. Physical Review Letters, 100(8), 086809. https://doi.org/10.1103/physrevlett.100.086809
Anders, Frithjof B., David E. Logan, Martin R. Galpin, and Gleb Finkelstein. “Zero-bias conductance in carbon nanotube quantum dots.Physical Review Letters 100, no. 8 (February 2008): 086809. https://doi.org/10.1103/physrevlett.100.086809.
Anders FB, Logan DE, Galpin MR, Finkelstein G. Zero-bias conductance in carbon nanotube quantum dots. Physical review letters. 2008 Feb;100(8):086809.
Anders, Frithjof B., et al. “Zero-bias conductance in carbon nanotube quantum dots.Physical Review Letters, vol. 100, no. 8, Feb. 2008, p. 086809. Epmc, doi:10.1103/physrevlett.100.086809.
Anders FB, Logan DE, Galpin MR, Finkelstein G. Zero-bias conductance in carbon nanotube quantum dots. Physical review letters. 2008 Feb;100(8):086809.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

February 2008

Volume

100

Issue

8

Start / End Page

086809

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences