Unconventional Majorana fermions on the surface of topological superconductors protected by rotational symmetry

J Ahn, BJ Yang - Physical Review B, 2021 - APS
Topological superconductors are exotic gapped phases of matter hosting Majorana mid-gap
states on their boundaries. In conventional three-dimensional topological superconductors …

Second-order bulk-boundary correspondence in rotationally symmetric topological superconductors from stacked Dirac Hamiltonians

E Roberts, J Behrends, B Béri - Physical Review B, 2020 - APS
Two-dimensional second-order topological superconductors host zero-dimensional
Majorana bound states at their boundaries. In this work, focusing on rotation-invariant …

Boundary topological superconductors

BX Li, Z Yan - Physical Review B, 2021 - APS
For strongly anisotropic time-reversal invariant (TRI) insulators in two and three dimensions,
the band inversion can occur, respectively, at all TRI momenta of a high symmetry axis and …

Local density of states in two-dimensional topological superconductors under a magnetic field: Signature of an exterior Majorana bound state

SI Suzuki, Y Kawaguchi, Y Tanaka - Physical Review B, 2018 - APS
We study quasiparticle states on a surface of a topological insulator (TI) with proximity-
induced superconductivity under an external magnetic field. An applied magnetic field …

[PDF][PDF] Surface Majorana Cones and Helical Majorana Hinge Modes in Superconducting Dirac Semimetals

M Kheirkhah, ZY Zhuang, J Maciejko… - arXiv preprint arXiv …, 2021 - researchgate.net
In the presence of certain symmetries, three-dimensional Dirac semimetals can harbor not
only surface Fermi arcs, but also surface Dirac cones. Motivated by the experimental …

Weak-pairing higher order topological superconductors

Y Wang, M Lin, TL Hughes - Physical Review B, 2018 - APS
Conventional topological superconductors are fully gapped in the bulk but host gapless
Majorana modes on their boundaries. We instead focus on a new class of superconductors …

Unwinding of a one-dimensional topological superconductor

A Rosch - Physical Review B—Condensed Matter and Materials …, 2012 - APS
We show that a topological superconductor made of four chains of superconducting spinless
fermions characterized by four Majorana edge states can adiabatically be deformed into a …

Double Majorana vortex zero modes in superconducting topological crystalline insulators with surface rotation anomaly

S Kobayashi, A Furusaki - Physical Review B, 2020 - APS
The interplay of time-reversal and n-fold rotation symmetries (n= 2, 4, 6) is known to bring a
new class of topological crystalline insulators (TCIs) having n surface Dirac cones due to a …

Majorana corner modes in a high-temperature platform

Z Yan, F Song, Z Wang - Physical review letters, 2018 - APS
We introduce two-dimensional topological insulators in proximity to high-temperature
cuprate or iron-based superconductors as high-temperature platforms of Majorana Kramers …

Electrically tunable topological superconductivity and Majorana fermions in two dimensions

J Wang - Physical Review B, 2016 - APS
The external controllability of topological superconductors and Majorana fermions would be
important both for fundamental and practical interests. Here we predict the electric-field …