Figure 3

The refined profiles using the (a,b) R3c + P4mm + Fd3m symmetries across the (110)T and (104)/(110)R reflections (referring to tetragonal (T) with rhombohedral (R) indices) are revealed to show the better agreement of the P4mm phase.

The refined profiles using the (a,b) R3c + P4mm + Fd3m symmetries across the (110)T and (104)/(110)R reflections (referring to tetragonal (T) with rhombohedral (R) indices) are revealed to show the better agreement of the P4mm phase.