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Surface states and breaking down of spin-to-surface locking on a conical topological insulator quantum dot

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  • L. G. Veiga

    (Universidade Federal de Viçosa)

  • W. A. Moura-Melo

    (Universidade Federal de Viçosa)

Abstract

We study a conical topological insulator quantum dot and we show how the cone tip affects the surface states energy spectrum. This is obtained by analytically solving the Dirac equation for these charge carries whose dynamics is restricted to the conical surface. Besides of changing the wave-functions and energy spectrum, the conical tip also yields breakdown of spin-to-surface locking in this geometry. Graphic abstract

Suggested Citation

  • L. G. Veiga & W. A. Moura-Melo, 2022. "Surface states and breaking down of spin-to-surface locking on a conical topological insulator quantum dot," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 95(11), pages 1-7, November.
    • Handle: RePEc:spr:eurphb:v:95:y:2022:i:11:d:10.1140_epjb_s10051-022-00424-8
    DOI: 10.1140/epjb/s10051-022-00424-8
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