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Robust acceleration of self consistent field calculations for density functional theory.
MedLine Citation:
PMID:  21476745     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We show that the type 2 Broyden secant method is a robust general purpose mixer for self consistent field problems in density functional theory. The Broyden method gives reliable convergence for a large class of problems and parameter choices. We directly mix the approximation of the electronic density to provide a basis independent mixing scheme. In particular, we show that a single set of parameters can be chosen that give good results for a large range of problems. We also introduce a spin transformation to simplify treatment of spin polarized problems. The spin transformation allows us to treat these systems with the same formalism as regular fixed point iterations.
Authors:
K Baarman; T Eirola; V Havu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  134     ISSN:  1089-7690     ISO Abbreviation:  J Chem Phys     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  134109     Citation Subset:  IM    
Affiliation:
Department of Mathematics and Systems Analysis, Aalto University School of Science, Espoo, FinlandDepartment of Applied Physics, Aalto University School of Science, Espoo, Finland.
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