Table 1 The determined values of a (Å) (lattice constant), V (volume), B (bulk-modulus), \(E_{0}\) (ground state energy) , and \(\tau _{X}\) (tolerance factor) of \(Cs_{2}AgBiX_{6}\) (X = Br, Cl).

From: Impact of halide variation on the optoelectronic properties of double perovskites

Compound

a (Å)

Volume \((a.u^{3})\)

B(GPa)

\(E_{0}(R_{y})\)

\(\tau _{X}\)

\(Cs_{2}AgBiBr_{6}\)

11.44

2532.3588

40.85

-116239.4291

0.89

\(Cs_{2}AgBiCl_{6}\)

10.95

2216.5418

27.78

-90497.8705

0.90