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Nanofabrication of weak links based on scanning force methods

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Abstract

Variable thickness bridges of superconducting Nb thin films have been fabricated for the first time by a combination of conventional photolithography and scanning force nanofabrication methods. The weak link behavior of these superconducting nanobridges was verified by low-temperature transport measurements, in particular by measuring the critical current as a function of an externally applied magnetic field. Future applications of miniaturized weak link structures may include highresolution scanning SQUID microscopes.

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Hahn, C., Matsuyama, T., Merkt, U. et al. Nanofabrication of weak links based on scanning force methods. Appl. Phys. A 62, 289–292 (1996). https://doi.org/10.1007/BF01575097

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