High Eu 4f low-energy oscillator strength in the isostructural rare-earth Zintl compounds EuIn2X2 (X = P,As)

Handle URI:
http://hdl.handle.net/10754/315742
Title:
High Eu 4f low-energy oscillator strength in the isostructural rare-earth Zintl compounds EuIn2X2 (X = P,As)
Authors:
Singh, Nirpendra ( 0000-0001-8043-0403 ) ; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The isostructral Zintl compounds EuIn2X2 (X = P,As) are investigated within density functional theory. We employ the local spin density approximation with onsite interaction (LSDA + U) for varying U from 0 eV to 7 eV to model the Coulomb repulsion of the Eu 4f electrons. The LSDA + U optical conductivity disagrees with the experimental spectrum, while the simple LSDA is successful. Contrary to the expectation, it is found that EuIn2X2 (X = P,As) has a large oscillator strength for the f → d transitions in the low-energy range (below 1.5 eV) in which effects of the joint density of states play a key role. The materials show a sizeable magneto-optical Kerr effect.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)
Citation:
Singh N, Schwingenschlögl U (2012) High Eu 4f low-energy oscillator strength in the isostructural rare-earth Zintl compounds EuIn2X2 (X = P,As). Appl Phys Lett 100: 151906. doi:10.1063/1.3702787.
Publisher:
American Institute of Physics
Journal:
Applied Physics Letters
Issue Date:
11-Apr-2012
DOI:
10.1063/1.3702787
Type:
Article
ISSN:
00036951
Additional Links:
http://scitation.aip.org/content/aip/journal/apl/100/15/10.1063/1.3702787
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorSingh, Nirpendraen
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2014-04-13T12:22:01Z-
dc.date.available2014-04-13T12:22:01Z-
dc.date.issued2012-04-11en
dc.identifier.citationSingh N, Schwingenschlögl U (2012) High Eu 4f low-energy oscillator strength in the isostructural rare-earth Zintl compounds EuIn2X2 (X = P,As). Appl Phys Lett 100: 151906. doi:10.1063/1.3702787.en
dc.identifier.issn00036951en
dc.identifier.doi10.1063/1.3702787en
dc.identifier.urihttp://hdl.handle.net/10754/315742en
dc.description.abstractThe isostructral Zintl compounds EuIn2X2 (X = P,As) are investigated within density functional theory. We employ the local spin density approximation with onsite interaction (LSDA + U) for varying U from 0 eV to 7 eV to model the Coulomb repulsion of the Eu 4f electrons. The LSDA + U optical conductivity disagrees with the experimental spectrum, while the simple LSDA is successful. Contrary to the expectation, it is found that EuIn2X2 (X = P,As) has a large oscillator strength for the f → d transitions in the low-energy range (below 1.5 eV) in which effects of the joint density of states play a key role. The materials show a sizeable magneto-optical Kerr effect.en
dc.language.isoenen
dc.publisherAmerican Institute of Physicsen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/100/15/10.1063/1.3702787en
dc.rightsArchived with thanks to Applied Physics Lettersen
dc.titleHigh Eu 4f low-energy oscillator strength in the isostructural rare-earth Zintl compounds EuIn2X2 (X = P,As)en
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Materials, Imperial College London, London SW7 2AZ, United Kingdomen
dc.contributor.institutionDepartment of Materials Science and Metallurgy, University of Cambridge, Cambridge CB2 3QZ, United Kingdomen
dc.contributor.institutionInstitute of Materials Physics, University of Münster, Wilhelm-Klemm-Strasse 10, Münster D-48149, Germanyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorSingh, Nirpendraen
kaust.authorSchwingenschlögl, Udoen
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