期刊
INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
卷 114, 期 1, 页码 14-49出版社
WILEY
DOI: 10.1002/qua.24521
关键词
LDA plus U; strongly correlated systems; transition metal compounds
类别
资金
- US National Science Foundation CAREER award [DMR 1151738]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1151738] Funding Source: National Science Foundation
- Division Of Earth Sciences
- Directorate For Geosciences [1319361, 0810272] Funding Source: National Science Foundation
The aim of this review article is to assess the descriptive capabilities of the Hubbard-rooted LDA+U method and to clarify the conditions under which it can be expected to be most predictive. The article illustrates the theoretical foundation of LDA+U and prototypical applications to the study of correlated materials, discusses the most relevant approximations used in its formulation, and makes a comparison with other approaches also developed for similar purposes. Open issues of the method are also discussed, including the calculation of the electronic couplings (the Hubbard U), the precise expression of the corrective functional and the possibility to use LDA+U for other classes of materials. The second part of the article presents recent extensions to the method and illustrates the significant improvements they have obtained in the description of several classes of different systems. The conclusive section finally discusses possible future developments of LDA+U to further enlarge its predictive power and its range of applicability. (c) 2013 Wiley Periodicals, Inc.
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