Valence electron correlation energy embracing the diamond-lattice materials C through Sn
Journal
International Journal of Nanoelectronics and Materials (IJNeaM)
ISSN
1997-4434
Date Issued
2008-01
Author(s)
Norman H. March
Donostia International Physics Center
Angel Rubio
Universidad del Pais Vasco
Abstract
By combining a recent result of March and Matthai for the energy gap G with a model
of Rey and Savin, the correlation energy ec of the valence electrons embracing C, Si, Ge and
Sn can be estimated. While Sn is thereby predicted to have ec near to the Ceperley-Alder
jellium result corresponding to G = 0, diamond exhibits a dramatic reduction in correlation
energy due to its large band-gap.