2014/10/31 by Jonas Fransson, J. Fransson, Annica M. Black‐Schaffer +3 · 1 citation
Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Electron scattering #Geometry #Graphene research and applications #Impurity #Materials science #Mathematics #Optics #Physics #Quantum mechanics #Scattering #Skew #Surface (topology) #Topological Materials and Phenomena #Topological insulator #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.90.241409
published as Phys. Rev. B 90, 241409(R) 2014 · 5 pages, 4 figures, now also with references
openalex publication_date 2014/12/08 · arxiv created 2014/12/10 · arxiv updated 2014/12/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show how to engineer enhanced skew scattering and gaplike openings in the surface state of three-dimensional topological insulators using only nonmagnetic impurities. Enhanced skew scattering off nonmagnetic impurities is obtained as a finite size effect of the scattering potential. Intimately related to the generated skew scattering is the emergence of a gaplike density of electron states locally around the impurities and surrounded by sharp resonances, with an extended energy gap appearing in engineered impurity structures.