Type of Publication: | Journal article |
Publication status: | Published |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-0-399840 |
Author: | Cui, Longji; Jeong, Wonho; Hur, Sunghoon; Matt, Manuel; Klöckner, Jan C.; Pauly, Fabian; Nielaba, Peter; Cuevas, Juan Carlos; Meyhofer, Edgar; Reddy, Pramod |
Year of publication: | 2017 |
Published in: | Science ; 355 (2017), 6330. - pp. 1192-1195. - ISSN 0036-8075. - eISSN 1095-9203 |
Pubmed ID: | 28209640 |
DOI (citable link): | https://dx.doi.org/10.1126/science.aam6622 |
Summary: |
Thermal transport in individual atomic junctions and chains is of great fundamental interest because of the distinctive quantum effects expected to arise in them. By using novel, custom-fabricated, picowatt-resolution calorimetric scanning probes, we measured the thermal conductance of gold and platinum metallic wires down to single-atom junctions. Our work reveals that the thermal conductance of gold single-atom junctions is quantized at room temperature and shows that the Wiedemann-Franz law relating thermal and electrical conductance is satisfied even in single-atom contacts. Furthermore, we quantitatively explain our experimental results within the Landauer framework for quantum thermal transport. The experimental techniques reported here will enable thermal transport studies in atomic and molecular chains, which will be key to investigating numerous fundamental issues that thus far have remained experimentally inaccessible.
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Subject (DDC): | 530 Physics |
Keywords: | thermal conductance, Wiedemann-Franz law, nanocontacts |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
CUI, Longji, Wonho JEONG, Sunghoon HUR, Manuel MATT, Jan C. KLÖCKNER, Fabian PAULY, Peter NIELABA, Juan Carlos CUEVAS, Edgar MEYHOFER, Pramod REDDY, 2017. Quantized thermal transport in single-atom junctions. In: Science. 355(6330), pp. 1192-1195. ISSN 0036-8075. eISSN 1095-9203. Available under: doi: 10.1126/science.aam6622
@article{Cui2017-03-17Quant-38281, title={Quantized thermal transport in single-atom junctions}, year={2017}, doi={10.1126/science.aam6622}, number={6330}, volume={355}, issn={0036-8075}, journal={Science}, pages={1192--1195}, author={Cui, Longji and Jeong, Wonho and Hur, Sunghoon and Matt, Manuel and Klöckner, Jan C. and Pauly, Fabian and Nielaba, Peter and Cuevas, Juan Carlos and Meyhofer, Edgar and Reddy, Pramod} }
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Cui_0-399840.pdf | 778 |