Table 1 Structure Parameters for Monolayers of VA Elements.

From: Two-Dimensional Pnictogen Honeycomb Lattice: Structure, On-Site Spin-Orbit Coupling and Spin Polarization

Element

N

P

As

Sb

Bi

Bulk (without vdW)

a

2.29

3.28

3.62

4.21

4.46

Δz

0.70

1.24

1.40

1.62

1.71

d

3.11

4.10

3.96

2.85

2.71

l

3.38

4.52

4.47

3.75

3.74

l bond

1.50

2.27

2.51

2.92

3.09

Bulk (with vdW)

a

2.29

3.32

3.65

4.11

Δz

0.70

1.21

1.37

1.64

d

2.76

2.88

2.82

2.84

l

3.06

3.46

3.52

3.70

l bond

1.50

2.27

2.51

2.89

Monolayer

a

2.30

3.28

3.61

4.12

4.33

Δz

0.70

1.24

1.40

1.65

1.71

l bond

1.50

2.26

2.51

2.89

3.09

Covalent radius33

0.71

1.07

1.19

1.39

1.48

vdW radius33

1.55

1.80

1.85

2.06

2.07

Unit in Å