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Size-dependent enhancement of superconductivity in nanowires

A. A. Shanenko·M. D. Croitoru·M. Zgirski·F. M. Peeters·K. Arutyunov
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Abstract

A shape-dependent superconducting resonance can be expected when an energy level associated with the transverse motion in a wire passes through the Fermi surface. We show that the recently observed width-dependent increase of $T_c$ in ${\rm Al}$ and ${\rm Sn}$ nanowires is a consequence of this shape resonance effect.

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A. A. Shanenko, M. D. Croitoru, M. Zgirski, F. M. Peeters, K. Arutyunov. 2009-04-21. Size-dependent enhancement of superconductivity in nanowires. https://arxiv.org/abs/cond-mat/0605119

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