216 citations · 1.5k across the 24 of their papers we have counts for
6 papers · 1 filter
Higher Order Topology and Nodal Topological Superconductivity in Fe(Se,Te) Heterostructures
Rui-Xing Zhang, William S. Cole, Xianxin Wu +1
We show theoretically that a heterostructure of monolayer FeTeSe - a superconducting quantum spin Hall material - with a monolayer of FeTe - a bicollinear antiferromagn…
Inversion-protected higher order topological superconductivity in monolayer WTe
Yi-Ting Hsu, William S. Cole, Rui-Xing Zhang +1
Monolayer WTe, a centrosymmetric transition metal dichacogenide, has recently been established as a quantum spin Hall insulator and found superconducting upon gating. Here we s…
Helical Hinge Majoranas in Iron-Based Superconductors
Rui-Xing Zhang, William S. Cole, S. Das Sarma
Motivated by recent experiments on FeTeSe, we construct an explicit minimal model of an iron-based superconductor with band inversion at the point and non-topolog…
Induced spectral gap and pairing correlations from superconducting proximity effect
Ching-Kai Chiu, William S. Cole, S. Das Sarma
We theoretically consider superconducting proximity effect, using the Bogoliubov-de Gennes theory, in heterostructure sandwich-type geometries involving a normal s-wave superconduc…
Proximity effect and Majorana bound states in clean semiconductor nanowires coupled to disordered superconductors
William S. Cole, Jay D. Sau, S. Das Sarma
We study a semiconductor wire with strong spin-orbit coupling, which is proximity-coupled to a superconductor with chemical potential disorder. When tunneling at the semiconductor-…
Effects of large induced superconducting gap on semiconductor Majorana nanowires
William S. Cole, S. Das Sarma, Tudor D. Stanescu
With the recent achievement of extremely high-quality epitaxial interfaces between InAs nanowires and superconducting Al shells with strong superconductor-semiconductor tunnel coup…