We describe the synthesis of superconducting nanowires and nanoribbons by the nondestructive removal of Se from one-dimensional nanostructure precursors. We report scanning electron microscopy imaging, x-ray diffraction, and transmission electron microscopy analyses of the morphology, composition, and crystallinity of the converted nanostructures. Transport measurements on individual nanowires/ribbons confirm their superconductivity with , and the appearance of current-induced resistance steps is attributed to localized phase slip centers, akin to those reported in other superconducting nanostructures.
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