uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Low energy electronic spectroscopy of an infinite-layer cuprate: A resonant inelastic X-ray scattering study of CaCuO2
Show others and affiliations
2010 (English)In: Physica. C, Superconductivity, ISSN 0921-4534, Vol. 470, no 3, 187-192 p.Article in journal (Refereed) Published
Abstract [en]

We report the results of Oxygen K-edge soft X-ray absorption and emission spectroscopy that was performed on an infinite-layer insulating cuprate thin film CaCuO2 Experimentally obtained spectra arc consistent with local density approximation calculations X-ray absorption spectra show a close resemblance to spectra obtained from homologous single crystal cuprates In addition to d-d excitations. X-ray emission spectra reveal the presence of Zhang-Rice singlet states in the infinite-layer CuO2 planes The question of whether the Zhang-Rice singlet features are masked by the O 2p main-band is addressed. it is possible to quantify the position of the Zhang-Rice singlet using emission intensity profiles X-ray emission is demonstrated as a tool for understanding CuO2 planar electronic correlation in the prototypical infinite-layer The energy difference, 2 0 eV, between the oxygen main-band and the Zhang-Rice singlet band is found to match values obtained theoretically using established planar electronic correlation parameters.

Place, publisher, year, edition, pages
2010. Vol. 470, no 3, 187-192 p.
Keyword [en]
Electronic structure, X-ray absorption spectra, X-ray emission spectra, Electronic density of states, High-temperature superconductors, Calcium compounds, Infinite-layer cuprates
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-136789DOI: 10.1016/j.physc.2009.12.028ISI: 000275613600001OAI: oai:DiVA.org:uu-136789DiVA: diva2:377486
Available from: 2010-12-14 Created: 2010-12-14 Last updated: 2011-02-23Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Soft X-Ray Physics
In the same journal
Physica. C, Superconductivity
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 293 hits
ReferencesLink to record
Permanent link

Direct link