This article is cited in 10 papers

CONDENSED MATTER

Engineering near-surface electron states in three-dimensional topological insulators

V. N. Men'shov^ab, V. V. Tugushev^cab, E. V. Chulkov<sup>db

a</sup> National Research Centre "Kurchatov Institute"
^b Tomsk State University
^c A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow
^d Departamento de Física de Materiales, Facultad de Quimica, UPV/EHU, San Sebastian, Basque Country

Abstract: Using the continual model of a semi-infinite three dimensional (3D) topological insulator (TI) we study the effect of the surface potential (SP) on the formation of helical topological states near the surface. The results reveal that spatial profile and spectrum of these states strongly depend on the SP type and strength. We pay special attention to the 3D TI substrate/non-magnetic insulating overlayer system to illustrate the principles of the topological near-surface states engineering.

Received: 05.08.2013
Revised: 03.10.2013

Language: English

DOI: 10.7868/S0370274X13220050

 English version: Journal of Experimental and Theoretical Physics Letters, 2013, 98:10, 603–608

Bibliographic databases:

• 
• 
• 
•