Numerical analysis of surface and edge states in slabs, stripes, rods and surface steps of topological insulators

3Citations
Citations of this article
12Readers
Mendeley users who have this article in their library.
Get full text

Abstract

By numerically solving the effective continuous model of a topological insulator with parameters corresponding to the band structure of the topological insulator Bi2Se3, we analyze possible appearance of one-dimensional states in various geometries. Massless Dirac fermions are found at the edges of thin ribbons with surface oriented not only along the van der Waals gap but also in the perpendicular direction. Thick rods and slabs with surface steps host massive modes localized on surface faces. We argue that the the origin of the massive modes is due to the difference in the Dirac point energy of adjacent faces. The absence of one-dimensional states near edges of a large rectangular rod and surface steps is demonstrated.

Cite

CITATION STYLE

APA

Fedotov, N. I., & Zaitsev-Zotov, S. V. (2018). Numerical analysis of surface and edge states in slabs, stripes, rods and surface steps of topological insulators. Journal of Physics Condensed Matter, 30(48). https://doi.org/10.1088/1361-648X/aae9d7

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free