Date of Award

1-1-2010

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Physics

Content Description

1 online resource (viii, 157 pages) : illustrations (some color)

Dissertation/Thesis Chair

Tara P Das

Committee Members

Hassaram Bakhru, Meng Bing Huang, Lee Chow, John Kimball

Keywords

BF3NH3, Boron Trifluoride, Hartree-Fock, MBPT, Transition Metal Ions, Wave functions, Electronic structure, Microclusters, Many-body problem

Subject Categories

Other Physics

Abstract

The variational Hartree-Fock-Roothaan (HF) method with correlation corrections introduced through Many Body Perturbation Theory (MBPT) and the variational Density Functional Theory (DFT) have been investigated for atomic systems to provide insights into the strengths and weaknesses of each variational approach to solving the multicenter many-electron Hamiltonian. The HF+MBPT method, having been found to be more reliable and physically relevant from the atomic investigations, is used to investigate the electronic structures and associated properties of the BF3*NH3 molecular complex, and through cluster methods, the most likely locations of the transitional metal impurities V2+, Cr+, Mn2+ and Mn0 in Silicon.

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