Table 1 The ratio of Ni2+ to Ni3+ of samples with x = 0.0, 0.1, 0.3, and 0.6 calculated from Ni 3p XPS spectra in Fig. 2.
From: Electrical transport properties and Kondo effect in La1−xPrxNiO3−δ thin films
Pr content x | Peak position (eV) | Relative area of Ni2+ | Relative area of Ni3+ | Ni2+/Ni3+ ratio | |
|---|---|---|---|---|---|
Ni2+ | Ni3+ | ||||
0.0 | 66.38 | 67.98 | 5.11 | 8.7 | 0.60 |
0.1 | 66.37 | 67.95 | 4.36 | 5.47 | 0.80 |
0.3 | 66.40 | 67.99 | 6.66 | 6.93 | 0.96 |
0.6 | 66.39 | 67.99 | 5.28 | 5.91 | 0.89 |
