Absorption and photoemission spectroscopy of rare-earth oxypnictides
dc.bibliographicCitation.volume | 11 | |
dc.contributor.author | Kroll, T. | |
dc.contributor.author | Roth, F. | |
dc.contributor.author | Koitzsch, A. | |
dc.contributor.author | Kraus, R. | |
dc.contributor.author | Batchelor, D.R. | |
dc.contributor.author | Werner, J. | |
dc.contributor.author | Behr, G. | |
dc.contributor.author | Büchner, B. | |
dc.contributor.author | Knupfer, M. | |
dc.date.accessioned | 2018-06-12T16:44:16Z | |
dc.date.available | 2019-06-28T12:40:03Z | |
dc.date.issued | 2009 | |
dc.description.abstract | The electronic structure of various rare-earth oxypnictides has been investigated by performing Fe L2, 3 x-ray absorption spectroscopy, and Fe 2p and valence band x-ray photoemission spectroscopy. As representative samples the non-superconducting parent compounds LnFeAsO (Ln=La, Ce, Sm and Gd) have been chosen and measured at 25 and 300 K, i.e. below and above the structural and magnetic phase transition at ~150 K. We find no significant change of the electronic structure of the FeAs layers when switching between the different rare-earth ions or when varying the temperature below and above the transition temperatures. Using a simple two-configuration model, we find qualitative agreement with the Fe 2p3/2 core-level spectrum, which allows for a qualitative explanation of the experimental spectral shapes. | eng |
dc.description.version | publishedVersion | eng |
dc.format | application/pdf | |
dc.identifier.uri | https://doi.org/10.34657/1414 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/4380 | |
dc.language.iso | eng | eng |
dc.publisher | Milton Park : Taylor & Francis | eng |
dc.relation.doi | https://doi.org/10.1088/1367-2630/11/2/025019 | |
dc.relation.ispartofseries | New Journal of Physics, Volume 11 | eng |
dc.rights.license | CC BY-NC-SA 3.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-sa/3.0/ | eng |
dc.subject | Absorption | eng |
dc.subject | Cerium | eng |
dc.subject | Cerium compounds | eng |
dc.subject | Electronic properties | eng |
dc.subject | Electronic structure | eng |
dc.subject | Emission spectroscopy | eng |
dc.subject | Gadolinium | eng |
dc.subject | Luminescence of organic solids | eng |
dc.subject | Phase transitions | eng |
dc.subject | Photoemission | eng |
dc.subject | Superconducting magnets | eng |
dc.subject | X ray spectroscopy | eng |
dc.subject.ddc | 530 | eng |
dc.title | Absorption and photoemission spectroscopy of rare-earth oxypnictides | eng |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | New Journal of Physics | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
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