Table 4 Tight-Binding Parameters for Monolayer of VA Elements (eV).

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

Element

N

P

As

Sb

Bi

No SOC

SOC

No SOC

SOC

No SOC

SOC

No SOC

SOC

εs

−6.80

−5.02

−5.02

−4.90

−7.53

−5.49

−6.79

−7.09

−8.89

εp

−1.67

−0.565

−0.565

−0.275

−0.452

−0.252

−0.613

−0.105

−0.563

γss

−1.49

−1.07

−1.08

−0.351

−1.22

−0.448

−0.985

−0.0515

−0.864

γsp

4.76

2.89

2.89

1.98

2.72

1.85

2.20

1.61

1.99

γppσ

−5.94

−3.34

−3.34

−2.91

−2.77

−2.29

−2.26

−2.04

−2.02

γppπ

1.56

0.767

0.767

0.684

0.606

0.557

0.472

0.394

0.395

γ′ss

0.216

0.260

0.261

0.0986

−0.0529

0.0490

−0.0735

−0.0186

−0.124

γ′sp

−0.0235

−0.0562

−0.0562

−0.0637

0.179

−0.0384

0.0280

−0.0200

−0.124

γ′ppσ

1.38

1.15

1.15

0.858

0.786

0.653

0.646

0.535

0.551

γ′ppπ

−0.499

−0.377

−0.377

−0.233

−0.174

−0.162

−0.130

−0.109

−0.140

λI/10−3

−0.141

0

1.97

0

λR/10−2

0.406

0

0.278

0

λOS

−0.0106

−0.285

−0.299

−0.630