Crossing point Topological phase 2 Anomalous hall effects 1 Dirac fermions 1 Dispersion relations 1 First principle calculations 1 Generalized hamiltonians 1 Graphene 1 Hamiltonians 1 Interaction fields 1 Invariant theory 1 Iron compounds 1 Klein Tunneling 1 Landforms 1 Monolayers 1 Nonmagnetics 1 P-invariants 1 Quantum Hall effect 1 Quantum anomalous hall effect 1 Rashba spin-orbit interactions 1 Symmetry analysis 1 Topology 1 Two-dimensions 1 Valley splitting 1 Zeeman fields 1 quantum anomalous Hall effect 1 topological phase 1 two dimension 1