Table 4 SW potential parameters used by LAMMPS52.

From: Molecular dynamics simulations for mechanical properties of borophene: parameterization of valence force field model and Stillinger-Weber potential

 

(eV)

σ (Å)

a

λ

γ

cosθ0

A

BL

p

q

tol

B1-B5-B5

1.000

0.769

2.666

0.000

1.000

0.000

5.135

12.030

4

0

0.0

B1-B2-B2

1.000

0.618

3.914

0.000

1.000

0.000

1.402

42.820

4

0

0.0

B1-B3-B3

1.000

2.065

1.937

0.000

1.000

0.000

2.957

1.985

4

0

0.0

B1-B1-B1

1.000

1.413

2.902

0.000

1.000

0.000

1.683

16.343

4

0

0.0

B1-B8-B5

1.000

0.000

0.000

28.382

0.000

0.429

0.000

0.000

0

0

0.0

B1-B8-B6

1.000

0.000

0.000

5.852

0.000

−0.162

0.000

0.000

0

0

0.0

  1. The two-body potential expression is View full size image. The three-body potential expression is . Atom types in the first column are displayed in Fig. 7.