Higher-order Weyl superconductors with anisotropic Weyl-point connectivity

@article{Rui2020HigherorderWS,
title={Higher-order Weyl superconductors with anisotropic Weyl-point connectivity},
author={W. B. Rui and Song-Bo Zhang and Moritz M. Hirschmann and Zhen Zheng and Andreas P. Schnyder and Bjorn Trauzettel and Z. D. Wang},
journal={Physical Review B},
year={2020},
volume={103}
}
• Published 23 September 2020
• Physics
• Physical Review B
Weyl superconductors feature Weyl points at zero energy in the three-dimensional (3D) Brillouin zone and arc states that connect the projections of these Weyl points on the surface. We report that higher-order Weyl superconductors can be realized in odd-parity topological superconductors with time-reversal symmetry being broken by periodic driving. Different from conventional Weyl points, the higher-order Weyl points in the bulk separate 2D first- and second-order topological phases, while on…
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References

SHOWING 1-10 OF 79 REFERENCES

• Physics
Physical review letters
• 2020
PT-invariant 2D topological insulators and 3DTopological semimetals that go beyond this bulk-boundary correspondence framework are presented and it is found that the 3D system generically belongs to a novel second-order nodal-line semimetal phase, possessing gapped surfaces but a pair of diagonal or off-diagonal hinge Fermi arcs.
• Physics
Science
• 2020
Evidence is reported for the existence of a robust edge supercurrent in the Weyl superconductor molybdenum ditelluride (MoTe2) that is distinct from the conventional Fraunhofer oscillation displayed by the bulk supercurrent.
• Physics
• 2020
Second-order topological superconductors (SOTSs) host localized Majorana fermions and provide a new platform for topological quantum computation. We propose a feasible way to realize networks based
• Physics
• 2020
Majorana fermions feature non-Abelian exchange statistics and promise fascinating applications in topological quantum computation. Recently, second-order topological superconductors (SOTSs) have been
• Physics
Science
• 2020
A topological indicator is introduced that allows for the unambiguous identification of higher-order topology, even without in-gap states, and the associated higher- order bulk-boundary correspondence is demonstrated.
• Physics
Physical Review Research
• 2020
We consider a setup consisting of two coupled sheets of bilayer graphene in the regime of strong spin-orbit interaction, where electrostatic confinement is used to create an array of effective
• Physics
• 2018
We show that the current thermodynamic measurements in the superconducting phase of URu2Si2 are compatible with two distinct singlet chiral paired states kz(kx± iky) and (kx± iky). Depending on the
• Physics
Science
• 2019
Using angle-resolved photoemission spectroscopy, the electronic structure of the ferromagnetic crystal Co3Sn2S2 is visualized and discovered its characteristic surface Fermi-arcs and linear bulk band dispersions across the Weyl points, establishing Co3 Sn 2S2 as a magnetic Weyl semimetal that may serve as a platform for realizing phenomena.
Floquet higher-order topological insulators and superconductors (HOTI/SCs) with an order-two space-time symmetry or antisymmetry are classified. This is achieved by considering unitary loops, whose
• Physics, Mathematics
Physical Review B
• 2019
Parity-time ($\mathcal{PT}$) symmetry plays an important role both in non-Hermitian and topological systems. In non-Hermitian systems, $\mathcal{PT}$ symmetry can lead to an entirely real-energy