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Effective elastic properties of a van der Waals molecular monolayer at a metal surface
- Sun, D. Z. (author)
- Kim, D. H. (author)
- Le, D. (author)
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- Borck, O. (author)
- Kim, K. (author)
- Lu, W. H. (author)
- Zhu, Y. M. (author)
- Luo, M. M. (author)
- Wyrick, J. (author)
- Cheng, Z. H. (author)
- Einstein, T. L. (author)
- Rahman, T. S. (author)
- Bartels, L. (author)
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- (creator_code:org_t)
- 2010
- 2010
- English.
- In: Physical Review B - Condensed Matter and Materials Physics. - 2469-9950 .- 2469-9969. ; 82:20
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Adsorbing anthracene on a Cu(111) surface results in a wide range of complex and intriguing superstructures spanning a coverage range from 1 per 17 to 1 per 15 substrate atoms. In accompanying first-principles density-functional theory calculations we show the essential role of van der Waals interactions in estimating the variation in anthracene adsorption energy and height across the sample. We can thereby evaluate the compression of the anthracene film in terms of continuum elastic properties, which results in an effective Young's modulus of 1.5 GPa and a Poisson ratio approximate to 0.1. These values suggest interpretation of the molecular monolayer as a porous material-in marked congruence with our microscopic observations.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- adsorption
- Dept Phys
- Sweden.
- 2
- College Pk
- SE-41296 Gothenburg
- scanning-tunneling-microscopy
- density-functional theory
- stress
- MD
- Kwangmoo
- Einstein
- T. L.] Univ Maryland
- pentacene
- benzene
- [Kim
- cu(111)
- growth
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- art (subject category)
- ref (subject category)
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- Sun, D. Z.
- Kim, D. H.
- Le, D.
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- Lu, W. H.
- Zhu, Y. M.
- Luo, M. M.
- Wyrick, J.
- Cheng, Z. H.
- Einstein, T. L.
- Rahman, T. S.
- Hyldgaard, Per, ...
- Bartels, L.
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