Efficient Calculation of Electronic Structure Using O(N) Density Functional Theory.
J Chem Theory Comput
; 13(9): 4146-4153, 2017 Sep 12.
Article
in En
| MEDLINE
| ID: mdl-28714682
ABSTRACT
We propose an efficient way to calculate the electronic structure of large systems by combining a large-scale first-principles density functional theory code, Conquest, and an efficient interior eigenproblem solver, the Sakurai-Sugiura method. The electronic Hamiltonian and charge density of large systems are obtained by Conquest, and the eigenstates of the Hamiltonians are then obtained by the Sakurai-Sugiura method. Applications to a hydrated DNA system and adsorbed P2 molecules and Ge hut clusters on large Si substrates demonstrate the applicability of this combination on systems with 10,000+ atoms with high accuracy and efficiency.
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Database:
MEDLINE
Language:
En
Year:
2017
Type:
Article