Platform for nodal topological superconductors in monolayer molybdenum dichalcogenides

Lin Wang, Tomas Orn Rosdahl, and Doru Sticlet
Phys. Rev. B 98, 205411 – Published 16 November 2018
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Abstract

We propose a platform to realize nodal topological superconductors in a superconducting monolayer of MoX2(X=S,Se,Te) using an in-plane magnetic field. The bulk nodal points appear where the spin splitting due to spin-orbit coupling vanishes near the ±K valleys of the Brillouin zone and are six or twelve per valley in total. In the nodal topological superconducting phase, the nodal points are connected by flat bands of zero-energy Andreev edge states. These flat bands, which are protected by chiral symmetry, are present for all lattice-termination boundaries except zigzag.

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  • Received 22 June 2018
  • Revised 23 October 2018

DOI:https://doi.org/10.1103/PhysRevB.98.205411

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Lin Wang1,*, Tomas Orn Rosdahl1, and Doru Sticlet1,2

  • 1Kavli Institute of Nanoscience, Delft University of Technology, P.O. Box 4056, 2600 GA Delft, The Netherlands
  • 2National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania

  • *Corresponding author: L.Wang-6@tudelft.nl

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Issue

Vol. 98, Iss. 20 — 15 November 2018

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