Abstract
The equation of motion method is very well suited for studying the electronic density of states of disordered systems, especially those described by a tight binding Hamiltonian. The Hamiltonian problem is solved in direct space, hence the method can be applied to the systems with high substitutional disorder (oxygen vacancies, dopants), surfaces and interfaces and to study the local electronic environment in the presence of disorder. The presented version of the program was used to obtain the local, total and surface electronic density of states of rutile TiO2-x with up to x = 0.2 oxygen vacancies concentration.
Original language | English (US) |
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Pages (from-to) | 222-234 |
Number of pages | 13 |
Journal | Computer Physics Communications |
Volume | 71 |
Issue number | 3 |
DOIs | |
State | Published - Sep 1992 |
Bibliographical note
Funding Information:“School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA ~Department of Physics, San Diego State University, San Diego, CA 92182, USA Division of Information Technology, Commonwealth Scientific and Industrial Research Organization, 723 Swanston Street, Carlton, Victoria 3053, Australia d International Centre for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy