The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations
Photoemission spectra of K-doped SrCu2O2 excited with vacuum ultraviolet synchrotron radiation have been measured over a range of photon energies between 36 eV and 164 eV. Intensity changes in the spectra with changing photon energy show that the states at the top of the valence band are of dominant...
Автори: | , , , , |
---|---|
Формат: | Journal article |
Мова: | English |
Опубліковано: |
2007
|
_version_ | 1826277456023126016 |
---|---|
author | Hu, J Payne, D Egdell, R Harrison, N Dhanak, V |
author_facet | Hu, J Payne, D Egdell, R Harrison, N Dhanak, V |
author_sort | Hu, J |
collection | OXFORD |
description | Photoemission spectra of K-doped SrCu2O2 excited with vacuum ultraviolet synchrotron radiation have been measured over a range of photon energies between 36 eV and 164 eV. Intensity changes in the spectra with changing photon energy show that the states at the top of the valence band are of dominant Cu 3d atomic character, although there is evidence for significant hybridisation between O 2p and Cu 3d states. The experimental results are compared with partial densities of states derived from calculations using a hybrid exchange approximation to density functional theory. © 2007 Elsevier B.V. All rights reserved. |
first_indexed | 2024-03-06T23:29:10Z |
format | Journal article |
id | oxford-uuid:6b6aa91a-18a6-4b70-abd3-30b83c17bf06 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-06T23:29:10Z |
publishDate | 2007 |
record_format | dspace |
spelling | oxford-uuid:6b6aa91a-18a6-4b70-abd3-30b83c17bf062022-03-26T19:03:53ZThe electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6b6aa91a-18a6-4b70-abd3-30b83c17bf06EnglishSymplectic Elements at Oxford2007Hu, JPayne, DEgdell, RHarrison, NDhanak, VPhotoemission spectra of K-doped SrCu2O2 excited with vacuum ultraviolet synchrotron radiation have been measured over a range of photon energies between 36 eV and 164 eV. Intensity changes in the spectra with changing photon energy show that the states at the top of the valence band are of dominant Cu 3d atomic character, although there is evidence for significant hybridisation between O 2p and Cu 3d states. The experimental results are compared with partial densities of states derived from calculations using a hybrid exchange approximation to density functional theory. © 2007 Elsevier B.V. All rights reserved. |
spellingShingle | Hu, J Payne, D Egdell, R Harrison, N Dhanak, V The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title | The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title_full | The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title_fullStr | The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title_full_unstemmed | The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title_short | The electronic structure of SrCu2O2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
title_sort | electronic structure of srcu2o2 studied by synchrotron radiation excited photoemission and hybrid exchange density functional calculations |
work_keys_str_mv | AT huj theelectronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT payned theelectronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT egdellr theelectronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT harrisonn theelectronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT dhanakv theelectronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT huj electronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT payned electronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT egdellr electronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT harrisonn electronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations AT dhanakv electronicstructureofsrcu2o2studiedbysynchrotronradiationexcitedphotoemissionandhybridexchangedensityfunctionalcalculations |