Neutron Diffraction Study of the Structure of Cubic CsPbBr₃

抄録

The Debye-Waller factor of cubic CsPbBr₃ was investigated by neutron diffraction technique at 152°C. The perovskite structure model with anisotropic thermal vibrations can explain the characteristics of the thermal behavior of this substance, which turned out to be essentially the same as that of CsPbCl₃; that is, anomalously large thermal parameters for the cesium and halogen atoms are obtained.