By exploiting the high spatial resolution of scanning tunneling microscopy/spectroscopy at sub-Kelvin temperatures, the authors investigate superconductivity in the prototypical Pb/Ag/Si(111) system. In this paper they present the first experimental consideration of the effect of an external magnetic field on the spatially-dependent extension of superconductivity across a nanostructure superconductor-metal boundary. This study reveals the first quantitative data on the interplay between induced superconductivity in a normal metal and magnetic field with nanometer spatial resolution.
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Caminale et al. (2014) studied this question.