“…The O 1s core level spectra of BiInO 3 (201), for the BiInO 3 /(Ba,Sr)RuO 3 /NdScO 3 (110) o heterostructure shown in Figure S5 in the Supporting Information, have peaks at core level binding energies of 530.2 ± 0.2 eV (P 1 ) and 531.0 ± 0.2 eV (P 2 ) that correspond to the Bi 3+ (ref ) and In 3+ ( , ) metal oxides, respectively. The O 1s feature at 532.6 ± 0.2 eV (P 3 ) might be due to the presence of Bi 2 O 3 and In 2 O 3 , , along with contributions from surface defect states, but the assignment cannot be unequivocal.…”