Revealing thermal effects in the electronic transport through irradiated atomic metal point contacts

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Abstract

We report on the electronic transport through nanoscopic metallic contacts under the influence of external light fields. Various processes can be of relevance here, whose underlying mechanisms can be studied by comparing different kinds of atomic contacts. For this purpose two kinds of contacts, which were established by electrochemical deposition, forming a gate-controlled quantum switch (GCQS), have been studied. We demonstrate that in these kinds of contacts thermal effects resulting from local heating due to the incident light, namely thermovoltage and the temperature dependences of the electrical resistivity and the electrochemical (Helmholtz) double layer are the most prominent effects. © 2012 Kopp et al.

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Kopp, B., Yi, Z., Benner, D., Xie, F. Q., Obermair, C., Schimmel, T., … Scheer, E. (2012). Revealing thermal effects in the electronic transport through irradiated atomic metal point contacts. Beilstein Journal of Nanotechnology, 3(1), 703–711. https://doi.org/10.3762/bjnano.3.80

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