. Author manuscript; available in PMC: 2020 Oct 13.

Published in final edited form as: Phys Rev Mater. 2019;3(9):https://doi.org/10.1103/physrevmaterials.3.093602.

TABLE I.

Comparison of elastic constants extracted from ultrasound measurements in the cubic phase for CsPbCl₃ and neutron inelastic measurements in the cubic phase for CsPbBr₃ and MAPbCl₃ (MA = CH₃NH₃).

	CsPbCl₃ (from [25])	CsPbBr₃ (this work)	MAPbCl₃ (from [1])
C₄₄ (GPa)	5.04	2.45 (3)	3.00
(C₁₁ – C₁₂)/2 (GPa)	8.95	4.45 (5)	10.8