Repositorio Atenea de la Facultad de Ciencias, UNAM >
Repositorio Ciencias >
FACULTAD DE CIENCIAS >
Ciencias >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11154/3407
|
Title: | Many-body forces and electron correlation in small metal clusters |
Authors: | Kaplan, IG OrtegaBlake, I Novaro, O HernándezCobos, J |
Issue Date: | 1996 |
Abstract: | The many-body decomposition of the interaction energy for Be-N and Li-N (N'=2 to 4) clusters is calculated in two approximations: the self-consistent-field method and the Muller-Plesset perturbation theory up to the fourth order. This allows us to estimate the electron-correlation contributions to the many-body forces. The explicit expressions for these contributions in the perturbation theory formalism are obtained. We present a comparative analysis of the role of electron correlations in the Be-N and Li-N cluster formations and in the many-body interactions in these clusters. As follows from our results, the contribution of electron correlation to many-body interactions is essential for both the Be-N and Li-N clusters, especially for the latter ones, where nonadditivities are surprisingly large. |
URI: | http://hdl.handle.net/11154/3407 |
ISSN: | 1050-2947 |
Appears in Collections: | Ciencias
|
Files in This Item:
There are no files associated with this item.
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|