2007/02/02 by Wolter Siemons, Gertjan Koster, Artūras Vailionis +5 · 2 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Analytical Chemistry (journal) #Catalysis #Chemistry #Condensed matter physics #Crystallography #Electronic and Structural Properties of Oxides #Electronic structure #Magnetic and transport properties of perovskites and related materials #Materials science #Nuclear magnetic resonance #Optics #Oxygen #Physical chemistry #Physics #Ruthenium #Spectral line #Stoichiometry #Ultraviolet #X-ray photoelectron spectroscopy #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.76.075126
published as Phys. Rev. B 76, 075126 (2007) · 21 pages, 5 figures, submitted to Physical Review B
arxiv created 2007/02/02 · openalex publication_date 2007/08/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have grown and studied high quality SrRuO3 films grown by molecular beam epitaxy as well as pulsed laser deposition. By changing the oxygen activity during deposition, we were able to make SrRuO3 samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). This ability to control the ruthenium stoichiometry has permitted us to make a systematic study of the dependence of the degree of electron correlation in SrRuO3 on stoichiometry using transport and photoemission experiments. We have compared the measured ultraviolet photoemission spectroscopy spectra with calculated density of states spectra and offer explanations for the large observed differences between the two.