Chiral p-wave superconductivity in a twisted array of proximitized quantum wires
Tarun Tummuru, Oguzhan Can, Marcel Franz
DOI 10.1103/PhysRevB.103.L100501 · Physical Review B
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Abstract
A superconductor with px+ipy order has long fascinated the physics community because vortex defects in such a system host Majorana zero modes. Here, we propose a simple construction of a chiral superconductor using proximitized quantum wires and twist angle engineering as basic ingredients. A weakly coupled parallel array of these wires forms a gapless p-wave superconductor. Two such arrays, stacked on top of one another with a twist angle close to 90∘, spontaneously break time reversal symmetry and produce a robust, fully gapped px+ipy superconductor. We map out the topological phases of this setup, demonstrate the existence of Majorana zero modes in vortices, and discuss prospects for experimental realization.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| FeTexSe1-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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