Platform for nodal topological superconductors in monolayer molybdenum dichalcogenides

Journal article (2018)

Authors

L. Wang Kavli institute of nanoscience Delft, QN/Akhmerov Group - AS
T.O. Rosdahl Kavli institute of nanoscience Delft, QN/Akhmerov Group - AS
D.C. Sticlet QN/Akhmerov Group - AS , Kavli institute of nanoscience Delft, National Institute for Research and Development of Isotopic and Molecular Topics
Research Group
QN/Akhmerov Group (AS) (TU Delft)
Copyright: © 2018 L. Wang, T.O. Rosdahl, D.C. Sticlet
DOI: https://doi.org/10.1103/PhysRevB.98.205411
More Info
expand_more

Published Date

2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Akhmerov Group

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.

Files

PhysRevB.98.205411.pdf
(pdf | 0.906 Mb)
Unknown license