TY  - JOUR
AU  - Grebinskij, S.
AU  - Masys, S.
AU  - Mickevicius, S.
AU  - Lisauskas, V.
AU  - Jonauskas, V.
AU  - DESY
TI  - Ab initio and photoemission study of correlation effects in SrRuO<sub>3</sub> thin films
JO  - Physical review / B
VL  - 87
IS  - 3
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PHPPUBDB-24010
M1  - DESY-D-I-20100305 EC.
SP  - 035106
PY  - 2013
N1  - (c) American Physical Society. Post referee fulltext in progress. Code P.
AB  - We present the experimental and theoretical study of correlation effects in epitaxial SrRuO<sub>3</sub>  thin films. Experimentally, we have performed resonant ultraviolet photoemission spectroscopy (UPS) and angle-resolved hard x-ray photoemission spectroscopy (HAXPES) measurements. For resonant UPS, the two methods, Fano-profile fitting of constant initial state spectra and the energy distribution curves equidistant difference spectra, were used to extract Ru 4d partial spectral weight (PSW) in the valence band. We find Ru 4d PSW possessing a clearly pronounced coherent peak at the Fermi level together with angle-resolved HAXPES spectra demonstrating no difference in surface and bulk electronic structure. From comparison of experimental data with theoretical calculations done at density functional theory level, we conclude that SrRuO<sub>3</sub> is a weakly correlated material and electronic structure of it can be consistently described employing first-principles approaches.
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000313158000002
DO  - DOI:10.1103/PhysRevB.87.035106
UR  - https://bib-pubdb1.desy.de/record/140588
ER  -