Structural transitions in NaNH2 via recrystallization under high pressure
Huang Yanping †, Haung Xiaoli ‡, Wang Xin §, Zhang Wenting, Zhou Di, Zhou Qiang, Liu Bingbing, Cui Tian
       

The pressure dependence of vibration frequency for NaNH2 up to 5.5 GPa. The phase boundaries are indicated by vertical dotted lines.