Complex Spin Texture in the Pure and Mn-Doped Topological Insulator Bi2Te3

J. Henk, A. Ernst, S. V. Eremeev, E. V. Chulkov, I. V. Maznichenko, and I. Mertig
Phys. Rev. Lett. 108, 206801 – Published 14 May 2012
PDFHTMLExport Citation

Abstract

Topological insulators are characterized by the presence of spin-momentum-locked surface states with Dirac points that span the fundamental bulk band gap. We show by first-principles calculations that the surface state of the insulator Bi2Te3 survives upon moderate Mn doping of the surface layers. The spin texture of both undoped and Mn-doped Bi2Te3 is much more complicated than commonly believed, showing layer-dependent spin reversal and spin vortices.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 24 October 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.206801

© 2012 American Physical Society

Authors & Affiliations

J. Henk1,*, A. Ernst1, S. V. Eremeev2,3,4, E. V. Chulkov4,5,6, I. V. Maznichenko7, and I. Mertig1,7

  • 1Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120, Halle, Germany†
  • 2Institute of Strength Physics and Materials Science, pr. Academicheskii 2/4, 634021, Tomsk, Russia
  • 3Tomsk State University, pr. Lenina 36, 634050, Tomsk, Russia
  • 4Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal, 4, 20018 San Sebastián/Donostia, Basque Country, Spain
  • 5Departamento de Física de Materiales, Facultad de Ciencias Químicas, UPV/EHU, Apartado 1072, 20080 San Sebastián, Basque Country, Spain
  • 6Centro de Física de Materiales, CFM-MPC, Centro Mixto CSIC-UPV/EHU, Apdo. 1072, 20080 San Sebastián/Donostia, Basque Country, Spain
  • 7Institut für Physik, Universität Halle-Wittenberg, Von-Seckendorff-Platz 1, D-06120 Halle, Germany

  • *Corresponding author. juergen.henk@physik.uni-halle.de
  • Present address: Institut für Physik, Universität Halle-Wittenberg, Von-Seckendorff-Platz 1, D-06120 Halle, Germany

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 108, Iss. 20 — 18 May 2012

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×