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 …
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 …
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 …
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 …
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 …
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 …
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 …
We introduce two-dimensional topological insulators in proximity to high-temperature cuprate or iron-based superconductors as high-temperature platforms of Majorana Kramers …
The external controllability of topological superconductors and Majorana fermions would be important both for fundamental and practical interests. Here we predict the electric-field …