Table 3. The computational elastic stiffness constants (Cij) and Cauchy's pressure (Cp) of KMgX3(X = O, S and Se) materials.
| Compound | C 11 | C 12 | C 44 | C p |
|---|---|---|---|---|
| KMgO3 | 183.74 | 38.84 | 21.765 | 17.074 |
| Other28 | 121.54 | 32.57 | 9.0363 | 23.535 |
| KMgS3 | 50.01 | 8.99 | 1.54 | 7.448 |
| KMgSe3 | 73.70 | 16.64 | 36.42 | −19.782 |