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Updated: Aug 18, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
Published on: April 28, 2016
Zero-conductance resonances due to flux states in nanographite ribbon junctions
1Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan and Institute of Materials Science, University of Tsukuba, Tsukuba 305-8573, Japan.
Abstract:
Electronic transport properties through junctions in nanographite ribbons are investigated using the Landauer approach. In the low-energy regime ribbons with zigzag boundary have a single conducting channel of edge states. The conductance as a function of the chemical potential shows a rich structure with sharp dips of zero conductance. Each zero-conductance resonance is connected with a resonant state which can be interpreted as the superposition of two degenerate flux states with Kekule-like current patterns. These zero-conductance dips are connected with a pronounced negative magnetoresistance.
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