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|Title:||Theoretical investigation of the equilibrium surface structure of si1-x-ygexcy alloys||Authors:||Kelires, Pantelis C.||Keywords:||Alloys;Monte Carlo method;Segregation;Computer simulation||Issue Date:||1998||Publisher:||Elsevier||Source:||Surface Science,1998, Volume 418, Issue 2,Pages L62-L67||Abstract:||We investigate the surface structure of SiGeC alloys at typical growth temperatures using Monte Carlo simulations within the empirical potential formalism. We find a strong tendency of carbon to segregate to the top layer. As a consequence, germanium segregation is drastically reduced. The carbon composition profile oscillates in the subsurface layers, with a marked enhancement in the third layer. Si-C dimers are the favored surface bonding geometry, and are mostly found in (2 × 2) and c(4 × 2) arrangements.||URI:||http://ktisis.cut.ac.cy/handle/10488/7611||ISSN:||0039-6028||DOI:||http://dx.doi.org/10.1016/S0039-6028(98)00758-4||Rights:||© 1998 Elsevier Science B.V. All rights reserved.||Type:||Article|
|Appears in Collections:||Άρθρα/Articles|
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