Symmetry analysis of strain, electric and magnetic fields in the ${\text{Bi}}_2{\text{Se}}_3$-class of topological insulators

Mathias Rosdahl Jensen, Jens Paaske, Anders Mathias Lunde +1

Based on group theoretical arguments we derive the most general Hamiltonian for the ${\text{Bi}}_2{\text{Se}}_3$-class of materials including terms to third order in the wave vector, f…