The system DyBa2Cu3-xFexO7-delta(x=0.00, 0. 03, 0. 18) has been studied using X-ray photoelectron spectroscopy. XPS results show no evidence of valency state of Cu other than 2 in samples whether Fe-doped or not. Sign...The system DyBa2Cu3-xFexO7-delta(x=0.00, 0. 03, 0. 18) has been studied using X-ray photoelectron spectroscopy. XPS results show no evidence of valency state of Cu other than 2 in samples whether Fe-doped or not. Significant changes in the O-1s spectra were found with increasing Fe content. rt seems that by the substitution of Fe for Cu the oxidation state of Cu was little affected while it affected apparently the O-1s peaks. The results are discussed in detail.展开更多
文摘The system DyBa2Cu3-xFexO7-delta(x=0.00, 0. 03, 0. 18) has been studied using X-ray photoelectron spectroscopy. XPS results show no evidence of valency state of Cu other than 2 in samples whether Fe-doped or not. Significant changes in the O-1s spectra were found with increasing Fe content. rt seems that by the substitution of Fe for Cu the oxidation state of Cu was little affected while it affected apparently the O-1s peaks. The results are discussed in detail.
