High-resolution photoelectron spectroscopy study of Kondo metals: SmSn3 and Sm0.9La0.1Sn3
2012 (English)In: Physical Review B Condensed Matter, ISSN 0163-1829, E-ISSN 1095-3795, Vol. 85, no 11, 115120- p.Article in journal (Refereed) Published
We performed a high-resolution photoelectron spectroscopy study on the Kondo metals SmSn3 and Sm0.9La0.1Sn3. The experimental results are compared with calculations of density of state performed within the local density approximation plus the dynamical mean-field theory. The theory is found to reproduce the experimental valence-band spectra well. In both SmSn3 and Sm0.9La0.1Sn3 the bulk Sm valence is nearly trivalent, with a small fraction of divalent component. Resonant photoelectron spectroscopy indicates a decrease in the Kondo effect in the diluted system Sm0.9La0.1Sn3.
Place, publisher, year, edition, pages
2012. Vol. 85, no 11, 115120- p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-173287DOI: 10.1103/PhysRevB.85.115120ISI: 000301916100002OAI: oai:DiVA.org:uu-173287DiVA: diva2:517221