Derivative discontinuity, bandgap and lowest unoccupied molecular orbital in density functional theory

The conventional analysis of Perdew and Levy, and Sham and Schlüter shows that the functional derivative discontinuity of the exchange-correlation density functional plays a critical role in the correct prediction of bandgaps, or the chemical hardness. In a recent work by the present authors, explic...

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Bibliographic Details
Published in:The Journal of chemical physics Vol. 136; no. 20; p. 204111
Main Authors: Yang, Weitao, Cohen, Aron J, Mori-Sánchez, Paula
Format: Journal Article
Language:English
Published: United States 28.05.2012
ISSN:1089-7690, 1089-7690
Online Access:Get more information
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