Non-Fermi-liquid behavior in transport across carbon nanotube quantum dots

Mayrhofer, Leonhard and Grifoni, Milena (2006) Non-Fermi-liquid behavior in transport across carbon nanotube quantum dots. PHYSICAL REVIEW B, 74 (12): 121403. ISSN 1098-0121,

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Abstract

A low energy theory for nonlinear transport in finite-size single-wall carbon nanotubes, based on a microscopic model for the interacting p(z) electrons and successive bosonization, is presented. Due to the multiple degeneracy of the energy spectrum diagonal as well as off-diagonal (coherences) elements of the reduced density matrix contribute to the nonlinear transport. A four-electron periodicity with a characteristic ratio between adjacent peaks, as well as nonlinear transport features, in quantitative agreement with recent experiments, are predicted.

Item Type: Article
Uncontrolled Keywords: ;
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group Milena Grifoni
Depositing User: Dr. Gernot Deinzer
Date Deposited: 03 Feb 2021 09:53
Last Modified: 03 Feb 2021 09:53
URI: https://pred.uni-regensburg.de/id/eprint/34139

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