Table 2.
IR peaks positions (in cm−1) and their attributions to vibration modes in the VO4 3− vanadate groups
| LaVO4 | La0.9Ca0.1VO4 | La0.8Ca0.2VO4 | La0.8Eu0.1Ca0.1VO4 | La0.6Eu0.2Ca0.2VO4 | Vibration modes |
|---|---|---|---|---|---|
| 434 | 438 | 436 | 439 | 440 | ν4 |
| 570 | 553 | 553 | |||
| 778 | 780 | 777 | 783 | 780 | |
| 802 | 801 | 802 | 801 | ||
| 811 | ν3 | ||||
| 820 | 822 | 824 | 821 | 820 | |
| 850 | 836; 850 | 835; 850 | 835; 854 | 836; 852 | |
| 880 | 874 | 875 | 875 | 874 | ν1 |
| 1026 | 976 | 975 | 918; 978 | 975 |