Conductance of highly oriented pyrolytic graphite nanocontacts |
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| Authors: | O.I. Shklyarevskii S. Speller H. van Kempen |
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| Affiliation: | (1) Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 1, 6525, ED, Nijmegen, Netherlands;(2) B. Verkin Institute for Low Temperature Physics &Engineering, National Academy of Science of Ukraine, 47 Lenin Av., 61103 Kharkov, Ukraine |
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| Abstract: | The conductance-voltage G(V) characteristics for contacts between electrodes of highly oriented pyrolytic graphite were studied in a wide range of G(0), bias voltages, and temperatures using the mechanically controllable break junction technique. Our results show a striking resemblance to corresponding data for conducting multiwall carbon nanotubes. For high-ohmic contacts between a single or a few graphene sheets, zero bias anomalies related to strong e–e Coulomb interactions and quantum interference of electrons is observed. PACS 72.15.-v.; 72.80.Rj; 73.63.Rt |
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