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Molecular-scale she...
Molecular-scale shear response of the organic semiconductor β -DBDCS (100) surface
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- Álvarez-Asencio, Ruben (författare)
- RISE,Yta, process och formulering,Autonomous University of Madrid, Spain
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- Moreno-Ramírez, Jorge S. (författare)
- Autonomous University of Madrid, Spain
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- Pimentel, Carlos (författare)
- Complutense University of Madrid, Spain; CSIC Instituto de Geociencias IGEO, Spain
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- Casado, Santiago (författare)
- Autonomous University of Madrid, Spain
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- Matta, Micaela (författare)
- Université de Bordeaux, France
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- Gierschner, Johannes (författare)
- Autonomous University of Madrid, Spain
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- Muccioli, Luca (författare)
- Université de Bordeaux, France
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- Yoon, Seong-Jun (författare)
- Seoul National University, South Korea
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- Varghese, Shinto (författare)
- Autonomous University of Madrid, Spain
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- Park, Soo Young (författare)
- Seoul National University, South Korea
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- Gnecco, Enrico (författare)
- Friedrich Schiller University Jena, Germany
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- Pina, Carlos M. (författare)
- Universidad Complutense de Madrid, Spain; CSIC Instituto de Geociencias IGEO, Spain
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(creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: Physical Review B. - 2469-9950 .- 2469-9969. ; 96:11
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this work we present friction-force microscopy (FFM) lattice-resolved images acquired on the (100) facet of the semiconductor organic oligomer (2Z,2′Z)-3,3′-(1,4-phenylene)bis(2-(4-butoxyphenyl)acrylonitrile) (β-DBDCS) crystal in water at room temperature. Stick-slip contrast, lateral contact stiffness, and friction forces are found to depend strongly on the sliding direction due to the anisotropic packing of the molecular chains forming the crystal surface along the [010] and [001] directions. The anisotropy also causes the maximum value of the normal force applicable before wearing to increase by a factor of 3 when the scan is performed along the [001] direction on the (100) face. Altogether, our results contribute to achieving a better understanding of the molecular origin of friction anisotropy on soft crystalline surfaces, which has been often hypothesized but rarely investigated in the literature.
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Álvarez-Asencio, ...
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Moreno-Ramírez, ...
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Pimentel, Carlos
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Casado, Santiago
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Matta, Micaela
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Gierschner, Joha ...
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visa fler...
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Muccioli, Luca
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Yoon, Seong-Jun
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Varghese, Shinto
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Park, Soo Young
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Gnecco, Enrico
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Pina, Carlos M.
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visa färre...
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