Article (Scientific journals)
Wavelike charge density fluctuations and van der Waals interactions at the nanoscale
Ambrosetti, Alberto; Ferri, Nicola; DiStasio Jr., Robert A. et al.
2016In Science, 351 (6278), p. 1171-1176
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Abstract :
[en] Recent experiments on noncovalent interactions at the nanoscale have challenged the basic assumptions of commonly used particle- or fragment-based models for describing van der Waals (vdW) or dispersion forces. We demonstrate that a qualitatively correct description of the vdW interactions between polarizable nanostructures over a wide range of finite distances can only be attained by accounting for the wavelike nature of charge density fluctuations. By considering a diverse set of materials and biological systems with markedly different dimensionalities, topologies, and polarizabilities, we find a visible enhancement in the nonlocality of the charge density response in the range of 10 to 20 nanometers. These collective wavelike fluctuations are responsible for the emergence of nontrivial modifications of the power laws that govern noncovalent interactions at the nanoscale.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Ambrosetti, Alberto
Ferri, Nicola
DiStasio Jr., Robert A.
Tkatchenko, Alexandre ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
External co-authors :
yes
Language :
English
Title :
Wavelike charge density fluctuations and van der Waals interactions at the nanoscale
Publication date :
11 March 2016
Journal title :
Science
ISSN :
0036-8075
Publisher :
AAAS, Washington, Unknown/unspecified
Volume :
351
Issue :
6278
Pages :
1171-1176
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
Available on ORBilu :
since 11 March 2016

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