Charge-transfer energy in iridates: A hard x-ray photoelectron spectroscopy study
dc.bibliographicCitation.firstPage | 45119 | eng |
dc.bibliographicCitation.lastPage | 69 | eng |
dc.bibliographicCitation.volume | 102 | eng |
dc.contributor.author | Takegami, D. | |
dc.contributor.author | Kasinathan, D. | |
dc.contributor.author | Wolff, K.K. | |
dc.contributor.author | Altendorf, S.G. | |
dc.contributor.author | Chang, C.F. | |
dc.contributor.author | Hoefer, K. | |
dc.contributor.author | Melendez-Sans, A. | |
dc.contributor.author | Utsumi, Y. | |
dc.contributor.author | Meneghin, F. | |
dc.contributor.author | Ha, T.D. | |
dc.contributor.author | Yen, C.H. | |
dc.contributor.author | Chen, K. | |
dc.contributor.author | Kuo, C.Y. | |
dc.contributor.author | Liao, Y.F. | |
dc.contributor.author | Tsuei, K.D. | |
dc.contributor.author | Morrow, R. | |
dc.contributor.author | Wurmehl, S. | |
dc.contributor.author | Büchner, B. | |
dc.contributor.author | Prasad, B.E. | |
dc.contributor.author | Jansen, M. | |
dc.contributor.author | Komarek, A.C. | |
dc.contributor.author | Hansmann, P. | |
dc.contributor.author | Tjeng, L.H. | |
dc.date.accessioned | 2020-08-03T12:17:14Z | |
dc.date.available | 2020-08-03T12:17:14Z | |
dc.date.issued | 2020 | |
dc.description.abstract | We have investigated the electronic structure of iridates in the double perovskite crystal structure containing either Ir4+ or Ir5+ using hard x-ray photoelectron spectroscopy. The experimental valence band spectra can be well reproduced using tight-binding calculations including only the Ir 5d, O 2p, and O 2s orbitals with parameters based on the downfolding of the density-functional band structure results. We found that, regardless of the A and B cations, the A2BIrO6 iridates have essentially zero O 2p to Ir 5d charge-transfer energies. Hence double perovskite iridates turn out to be extremely covalent systems with the consequence being that the magnetic exchange interactions become very long ranged, thereby hampering the materialization of the long-sought Kitaev physics. Nevertheless, it still would be possible to realize a spin-liquid system using the iridates with a proper tuning of the various competing exchange interactions. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://doi.org/10.34657/4002 | |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/5373 | |
dc.language.iso | eng | eng |
dc.publisher | College Park, ML : American Physical Society | eng |
dc.relation.doi | https://doi.org/10.1103/PhysRevB.102.045119 | |
dc.relation.ispartofseries | Physical Review B 102 (2020) | eng |
dc.rights.license | CC BY 4.0 Unported | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.subject | Electronic structure | eng |
dc.subject | Hard x-ray photoelectron spectroscopy | eng |
dc.subject | Tight-binding model | eng |
dc.subject.ddc | 530 | eng |
dc.title | Charge-transfer energy in iridates: A hard x-ray photoelectron spectroscopy study | ger |
dc.type | article | eng |
dc.type | Text | eng |
dcterms.bibliographicCitation.journalTitle | Physical Review B | eng |
tib.accessRights | openAccess | eng |
wgl.contributor | IFWD | eng |
wgl.subject | Physik | eng |
wgl.type | Zeitschriftenartikel | eng |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- Charge-transfer energy in iridates.pdf
- Size:
- 1.22 MB
- Format:
- Adobe Portable Document Format
- Description: