Berry phase of nonideal Dirac fermions in topological insulators
Berry phase of nonideal Dirac fermions in topological insulators
A distinguishing feature of Dirac fermions is the Berry phase of $\ensuremath{\pi}$ associated with their cyclotron motions. Since this Berry phase can be experimentally assessed by analyzing the Landau-level fan diagram of the Shubnikov--de Haas (SdH) oscillations, such an analysis has been widely employed in recent transport studies of topological …