$\beta =\frac{4\overline{m}{s}^2}{a^2}$

Extracted

$\underset{\_}{\beta }=\frac{m{s}^2}{a^2{\eta }_1}$

Estimated

S (m/s)

B [11]

(×10¹¹)

a [5]

(×10⁻¹⁰ m)

Crystal

78.31346728

79.7487862

11155.092

4.4000

3.56

C-C

26.90453009

27.39779461

6520.984

0.9908

5.43

Si-Si

24.05782553

24.49891544

3998.367

0.8501

5.66

Ge-Ge

45.98786306

47.27084074

8084.071

2.1142

4.35

Si-C

13.61016036

13.95506009

3508.744

0.5032

5.41

Zn-S

12.30523188

12.60025426

2673.068

0.4046

6.10

Zn-Te

13.34362773

13.84632183

2942.99

0.4783

5.82

Cd-S

9.939901797

10.12465468

2288.505

0.3068

6.48

Cd-Te