Publication Date:
2016-02-27
Description:
The state of vanishing friction known as superlubricity has important applications for energy saving and increasing the lifetime of devices. Superlubricity, as detected with atomic force microscopy, appears when sliding large graphite flakes or gold nanoclusters across surfaces, for example. However, the origin of the behavior is poorly understood because of the lack of a controllable nanocontact. We demonstrated the superlubricity of graphene nanoribbons when sliding on gold with a joint experimental and computational approach. The atomically well-defined contact allows us to trace the origin of superlubricity, unraveling the role played by ribbon size and elasticity, as well as by surface reconstruction. Our results pave the way to the scale-up of superlubricity and thus to the realization of frictionless coatings.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kawai, Shigeki -- Benassi, Andrea -- Gnecco, Enrico -- Sode, Hajo -- Pawlak, Remy -- Feng, Xinliang -- Mullen, Klaus -- Passerone, Daniele -- Pignedoli, Carlo A -- Ruffieux, Pascal -- Fasel, Roman -- Meyer, Ernst -- New York, N.Y. -- Science. 2016 Feb 26;351(6276):957-61. doi: 10.1126/science.aad3569.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland. PRESTO (Precursory Research for Embryonic Science and Technology), Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan. ; nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Uberlandstrasse 129, 8600 Dubendorf, Switzerland. Institute for Materials Science and Max Bergmann Center of Biomaterials, Technische Universitat Dresden, 01062 Dresden, Germany. ; Instituto Madrileno de Estudios Avanzados en Nanociencia, 28049 Madrid, Spain. Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, 07743 Jena, Germany. ; nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Uberlandstrasse 129, 8600 Dubendorf, Switzerland. ; Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland. ; Department of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universitat Dresden, 01062 Dresden, Germany. ; Max Planck Institute for Polymer Research, 55124 Mainz, Germany. ; nanotech@surfaces Laboratory, Empa, Swiss Federal Laboratories for Materials Science and Technology, Uberlandstrasse 129, 8600 Dubendorf, Switzerland. Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26917767" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
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Physics
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