Table 4 The elastic constants (C11, C12, C44), the cisaillement module (GV, GR, GH), the compressibility module (BV, BR, BH), and the anisotropy factor (A), the young module (EV, ER, EH), the coefficient of Poisson (νV ,νR, νH), and the BH/GH ratio for the compounds Cs2AgBiX6 (X = Br, Cl).

From: Exploring the mechanical, dynamical, and thermal stability of Cs2AgBiX6 (X = Br, Cl) for optoelectronic and thermoelectric applications

 

Cs2AgBiBr6

Cs2AgBiCl6

C11 (GPa)

29.8714

25.40922

33.33255

C12 (GPa)

13.2757

14.48322

17.3732

C44 (GPa)

6.204

6.30122

7.42565

Gv (GPa)

7.04154

5.9722

7.64726

GR (GPa)

6.900

5.937

7.6377

GH (GPa)

6.9710

5.95122

7.6425

BH (GPa)

18.8076

22.69298

A

0.747

0.9305

EV (GPa)

18.78

16.1322

20.6249

ER (GPa)

18.445

16.05722

20.6019

EH (GPa)

18.613

16.09222

20.6134

νV

0.333

0.3522

0.34852

νR

0.336

0.35222

0.34869

νH

0.335

0.35222

0.3486

BH/GH

2.697

3.0422

2.969

The average wave velocity (m/s)

1373.95417

1557.12113

Debye temperature (K)

121.59138

112.722

144.25956

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