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Tunable Majorana corner modes in noncentrosymmetric superconductors: Tunneling spectroscopy and edge imperfections
S. Ikegaya, W. B. Rui, D. Manske +1
Majorana corner modes appearing in two-dimensional second-order topological superconductors have great potential applications for fault-tolerant topological quantum computations. W…
Higher-order Weyl superconductors with anisotropic Weyl-point connectivity
W. B. Rui, Song-Bo Zhang, Moritz M. Hirschmann +3
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…
Surface -wave superconductivity for oxide-terminated infinite-layer nickelates
Xianxin Wu, Kun Jiang, Domenico Di Sante +4
We analyze the electronic structure of different surface terminations for infinite-layer nickelates. Surface NiO layers are found to be buckled, in contrast to planar bulk laye…
Weyl-fermions, Fermi-arcs, and minority-spin carriers in ferromagnetic CoS2
Niels B. M. Schröter, Iñigo Robredo, Sebastian Klemenz +15
The pyrite compound CoS2 has been intensively studied in the past due to its itinerant ferromagnetism and potential for half-metallicity, which make it a promising material for spi…
Phenomenology of the chiral -wave state in the hexagonal pnictide superconductor SrPtAs
Hikaru Ueki, Shoma Inagaki, Ryota Tamura +5
The pairing symmetry of the hexagonal pnictide superconductor SrPtAs is discussed with taking into account its multiband structure. The topological chiral -wave state with time-…
Topological piezoelectric effect and parity anomaly in nodal line semimetals
Taiki Matsushita, Satoshi Fujimoto, Andreas P. Schnyder
Lattice deformations act on the low-energy excitations of Dirac materials as effective axial vector fields. This allows to directly detect quantum anomalies of Dirac materials via…