Topological Anderson Insulator in Cation-Disordered Cu<sub>2</sub>ZnSnS<sub>4</sub>.
Binayak Mukherjee, Eleonora Isotta, Carlo Fanciulli, Narges Ataollahi, Paolo Scardi
Abstract
, which was previously predicted to be a 3D topological insulator, while band structure calculations with a slab geometry reveal the presence of robust surface states. This evidence makes a strong case in favor of a novel topological phase. As such, the study opens up a window to understanding and potentially exploiting topological behavior in a rich class of easily-synthesized multinary, disordered compounds.
Topics & Concepts
Brillouin zoneTopological insulatorTopology (electrical circuits)Insulator (electricity)Density functional theoryMaterials scienceTopological orderCondensed matter physicsBand gapPhysicsQuantum mechanicsOptoelectronicsMathematicsQuantumCombinatoricsTopological Materials and Phenomena2D Materials and ApplicationsAdvanced Condensed Matter Physics