Size-dependent enhancement of superconductivity in nanowires
classification
❄️ cond-mat.supr-con
cond-mat.mtrl-sci
keywords
nanowiresresonanceassociatedconsequenceeffectenergyenhancementexpected
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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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