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arXiv · 1208.3701

Majorana Zero Modes in Semiconductor Nanowires in Contact with Higher-$T_c$ Superconductors

Younghyun Kim·Jennifer Cano·Chetan Nayak
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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 superconudctors. We show that a nanowire on a step-like surface, especially in an orthorhombic material such as YBCO, can support Majorana zero modes at an elevated temperature.

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Younghyun Kim, Jennifer Cano, Chetan Nayak. 2012-08-30. Majorana Zero Modes in Semiconductor Nanowires in Contact with Higher-$T_c$ Superconductors. https://doi.org/10.1103/physrevb.86.235429

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