Fig. 2: Substitution- (x) and temperature- (T) dependent band-selective suppression at EF.
From: Signature of Kondo hybridisation with an orbital-selective Mott phase in 4d Ca2−xSrxRuO4
ARPES images along S-Γ1-S for x = a 0.5, b 0.4, c 0.3, and d 0.2 measured at T = 10 K. ARPES images of x = 0.2 along S-Γ1-S measured at T = e 45, f 30, g 20, and d 10 K. h Magnified images of x = 0.2 obtained from region #2 (black rectangles) in d–g measured at T = 45, 30, 20, 10 K; a different colour scale is used to make the T-dependence clearer. Note the soft gap17,18 opening in the β- and γ-bands. i Schematic Fermi surfaces of α- (green), β- (brown), and γ- (red) bands of x = 0.5. Momentum region for ARPES data in this figure is marked with a blue box along Γ1-S. j x-dependent normalised MDCs at EF (integrated over EF ± 10 meV) along Γ1-S from the data in a–d. The colour-coded curves are the data and corresponding Lorentzian fits (black: MDC data, green: α, brown: β, red: γ, blue: sum of fits). k The x-dependent changes in Lorentzian fit areas relative to those of x = 0.5, obtained from j. l T-dependent near EF spectral weight changes relative to that at T = 45 K for x = 0.2 (for the raw data, see Supplementary Fig. 4). All the data were measured with π-polarised light (hv = 70 eV, Supplementary Fig. 2).
