Table 1 Assignment of the peaks observed in the Raman spectrum of LaAlO3 at low temperature.
Peak Position (Raman shift: cm−1) | Mode assignment | Peak Position (Raman shift: cm−1) | Mode assignment |
|---|---|---|---|
146 (R) | AlO6 vibration | 678 (PL) | Oi/VO |
156 (R) | AlO6 vibration | 692 (PL) | Oi/VO |
271 (PL)* | Oi/VO | 715 (PL)* | Oi/VO |
290 (PL)* | Oi/VO | 1094 (R) | LaAl: anti-site/Cationic vacancy (1st Order) |
400 (PL) | Oi/VO | 1108 (R)* | LaAl: anti-site/Cationic vacancy (1st Order) |
425 (PL) | Oi/VO | 2045 (R)* | LaAl: anti-site/Cationic vacancy (2nd Order) |
473 (R) | AlO6 vibration | 2088 (R)* | LaAl: anti-site/Cationic vacancy (2nd Order) |
490 (R) | AlO6 vibration | 3258 (R)* | LaAl: anti-site/Cationic vacancy (3rd Order) |
500 (PL) | Oi/VO | 3278 (R)* | LaAl: anti-site/Cationic vacancy (3rd Order) |
511 (PL) | Oi/VO | R: Raman active; PL: Photoluminescence *Shows magnetic splitting | |
