Majorana zero modes in semiconductor nanowires in contact with higher-Tc superconductors
Younghyun Kim, Jennifer Cano, Chetan Nayak
DOI 10.1103/PhysRevB.86.235429 · Physical Review B
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Abstract
We analyze the prospects for stabilizing Majorana zero modes in semiconductor nanowires that are proximity coupled to higher-temperature superconductors. We begin with the case of iron pnictides which, though they are s-wave superconductors, are believed to have superconducting gaps that change sign. We then consider the case of cuprate superconductors. We show that a nanowire on a steplike surface, especially in an orthorhombic material such as YBCO, can support Majorana zero modes at an elevated temperature.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba0.6K0.4Fe2As2 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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