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When Small is Different: The Case of Membranes Inside Tubes

Published online by Cambridge University Press:  11 July 2012

Eric Perim ,
Alexandre F. Fonseca  and
Douglas S. Galvão
Eric Perim
Affiliation:
Applied Physics Department, State University of Campinas, Campinas-SP, Sao Paulo, Brazil
Alexandre F. Fonseca
Affiliation:
UNESP – Sao Paulo State University, Department of Physics, Bauru, Sao Paulo, Brazil.
Douglas S. Galvão
Affiliation:
Applied Physics Department, State University of Campinas, Campinas-SP, Sao Paulo, Brazil
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Abstract

Recently, classical elasticity theory for thin sheets was used to demonstrate the existence of a universal structural behavior describing the confinement of sheets inside cylindrical tubes. However, this kind of formalism was derived to describe macroscopic systems. A natural question is whether this behavior still holds at nanoscale. In this work, we have investigated through molecular dynamics simulations the structural behavior of graphene and boron nitride single layers confined into nanotubes. Our results show that the class of universality observed at macroscale is no longer observed at nanoscale. The origin of this discrepancy is addressed in terms of the relative importance of forces and energies at macro and nano scales.

Keywords

elastic propertiesnanoscalestress/strain relationship
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1451: Symposium DD/EE – Nanocarbon Materials and Devices , 2012 , pp. 15 - 20
Copyright
Copyright © Materials Research Society 2012

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References

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