Premium
Crystal mismatched layers in pentagonal nanorods and nanoparticles
Author(s) -
Dorogin L. M.,
Vlassov S.,
Kolesnikova A. L.,
Kink I.,
Lõhmus R.,
Romanov A. E.
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200945385
Subject(s) - nanorod , isotropy , shell (structure) , radius , materials science , elasticity (physics) , nanoparticle , cubic crystal system , linear elasticity , core (optical fiber) , molecular physics , condensed matter physics , nanotechnology , composite material , physics , thermodynamics , optics , finite element method , computer science , computer security
Pentagonal nanorods (PNRs) and nanoparticles (PNPs) covered by mismatched shell layers are theoretically investigated. Mechanical stresses and elastic energies of such objects are calculated analytically and analyzed in the framework of linear isotropic elasticity. Difference between elastic modules of core and shell is taken into account. The threshold radiuses as the minimal radiuses of PNR and PNP for which the formation of the shell layer is energetically favorable are found. The threshold radius is approximately 10 nm for PNPs and 100 nm for PNRs of typical face‐centered cubic (FCC) metals. The optimal magnitudes of mismatch parameter giving the maximal energy release for shelled PNRs and PNPs are determined.