7 papers
Valley Valves at Domain Walls in Symmetry-Broken Rhombohedral Graphene
Vo Tien Phong, Francisco Lobo, Elsa Prada +3
Rhombohedral multilayer graphene polarized by a moderate perpendicular displacement field hosts a time-reversal-symmetry-breaking valley-and-spin-polarized metallic phase that may…
Solitonic Andreev spin qubits from Andreev states in Corbino Josephson junctions
Pablo San-Jose, Elsa Prada
We study a novel type of solitonic Andreev bound state (ABS) in a Corbino-geometry Josephson junction created on a 2DEG. The Josephson junction is subjected to a weak magnetic flux…
Fluxoid solitons in superconducting tapered tubes and bottlenecks
Tim Kokkeler, Mateo Uldemolins, Francisco Lobo +3
A thin-walled tubular superconductor develops a quantized fluxoid in the presence of an axial magnetic field. The fluxoid corresponds to the number of phase windings of the superco…
Fluxoid valve effect in full-shell nanowire Josephson junctions
Carlos Payá, F. J. Matute-Cañadas, A. Levy Yeyati +3
We introduce a new type of supercurrent valve based on full-shell nanowires. These hybrid wires consist of a semiconductor core fully wrapped in a thin superconductor shell and sub…
Josephson effect and critical currents in trivial and topological full-shell hybrid nanowires
Carlos Payá, Ramón Aguado, Pablo San-Jose +1
We perform microscopic numerical simulations of the Josephson effect through short junctions between two full-shell hybrid nanowires, comprised of a semiconductor core fully wrappe…
Caroli-de Gennes-Matricon Analogs in Full-Shell Hybrid Nanowires
M. T. Deng, Carlos Payá, Pablo San-Jose +3
We report tunneling spectroscopy of Andreev subgap states in hybrid nanowires with a thin superconducting full-shell surrounding a semiconducting core. The combination of the quant…