Table 1 EXAFS fitting results deduced from V K-edge spectra of WxV1−xO2 samples
From: Unraveling Metal-insulator Transition Mechanism of VO2Triggered by Tungsten Doping
W % | R-factor | V−O (Å) (±0.02) | σ2(103Å) | V−V (Å) (±0.02) | σ2(103Å) | ΔE0(eV) |
|---|---|---|---|---|---|---|
0.54 | 0.029 | 1.80/1.89/1.92 | 3.1 (±0.3) | 2.68/3.08 | 2.9 (±1.7) | 3.7 (±1.6) |
1.98/1.99/2.02 | 4.0 (±1.1) | 3.42/3.49/3.55/3.62 | 4.0 (±2.1) | |||
0.95 | 0.038 | 1.85/1.90/1.92 | 2.8 (±2.0) | 2.77/2.97 | 3.7 (±2.3) | −5.5 (±2.3) |
1.94/1.95/1.97 | 3.7 (±1.9) | 3.45/3.50/3.53/3.57 | 5.8 (±1.6) | |||
1.54 | 0.032 | 1.92 | 8.2 (±3.5) | 2.87 | 3.0 (±1.8) | −3.1 (±2.6) |
3.50 | 4.5 (±2.5) | |||||
2.38 | 0.027 | 1.92 | 8.5 (±4.1) | 2.87 | 2.8 (±1.9) | 4.3 (±1.1) |
3.50 | 3.6 (±2.7) |
