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The challenges of nanostructures for theory

Stoneham, AM; (2003) The challenges of nanostructures for theory. Materials Science and Engineering: C , 23 (1-2) 235 - 241. 10.1016/S0928-4931(02)00274-6. Green open access

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Abstract

It is tempting to believe that modelling in nanotechnology is much the same as that for conventional solid-state physics. However, important areas of nanotechnology address different systems. The mechanics of DNA (for instance) resembles spaghetti more than silicon, the statistical physics needed is often not carrier statistics, and the role of viscosity (the low Reynolds number limit) is not always the familiar one. The idea of equilibrium may be irrelevant, as the kinetics of nonequilibrium (perhaps quasi-steady state) can be crucial. Even when the issues are limited to nanoscale structures (rather than functions), there is a complex range of ideas. Some features, like elasticity and electrostatic energies, have clear macroscopic analogies, but different questions emerge, such as the accuracy of self-organisation. Others concepts like epitaxy and templating are usually micro- or mesostructural. Some of the ideas, which emerge in modelling for the nanoscale, suggest parallels between molecular motors and recombination enhanced diffusion in semiconductors. (C) 2002 Elsevier Science B.V. All rights reserved.

Type: Article
Title: The challenges of nanostructures for theory
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/S0928-4931(02)00274-6
Publisher version: http://dx.doi.org/10.1016/S0928-4931(02)00274-6
Language: English
Additional information: Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012. This volume contains papers presented at Symposium Q of the 2002 spring meeting of the European Materials Research Society (E-MRS 2002), held in Strasbourg, France, in June 18–21. The symposium was entitled Current Trends in Nanotechnologies: from Materials to Systems and it was the third one under this title.
Keywords: Materials modelling, nanotechnology, knowledge management, validation, MATERIALS-SCIENCE, INTERFACES, SILICON, SURFACE, METAL, MODEL
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/53164
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