Electronic Structure Calculations of A2Ti2O7 (A = Dy, Ho, and Y)
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-15
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Ab initio calculations have been performed on titanate pyrochlores A2Ti2O7 (A = Dy, Ho, and Y) to investigate their electronic structures.
The generalized gradient approximation (GGA) + U formalism has been used to correct the strong onsite Coulomb repulsion between the localized 4f electrons.
The effects of effective U values on the structural and electronic properties of A2Ti2O7 (A = Dy, Ho, and Y) have been discussed.
It is shown that Dy2Ti2O7 and Ho2Ti2O7 exhibit different electronic structures from Y2Ti2O7.
The strong interaction between Dy and Ho 4f electrons and O 2p orbitals may increase the covalency of 〈Dy–O〉 and 〈Ho–O〉 bonds and decrease their irradiation resistance.
American Psychological Association (APA)
Xiao, Haiyan. 2013. Electronic Structure Calculations of A2Ti2O7 (A = Dy, Ho, and Y). Advances in Condensed Matter Physics،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-489593
Modern Language Association (MLA)
Xiao, Haiyan. Electronic Structure Calculations of A2Ti2O7 (A = Dy, Ho, and Y). Advances in Condensed Matter Physics No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-489593
American Medical Association (AMA)
Xiao, Haiyan. Electronic Structure Calculations of A2Ti2O7 (A = Dy, Ho, and Y). Advances in Condensed Matter Physics. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-489593
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489593