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Photon-induced transport through mesoscopic structures using nano-ploughed Josephson junctions

Holleitner, Alexander W. ; Simmel, Friedrich C. ; Irmer, B. ; Blick, Robert H. ; Kotthaus, Jörg P. ; Bichler, Max ; Wegscheider, Werner


A new technique is presented enabling the combination of highly transparent superconducting weak links with mesoscopic devices. These can serve as on-chip millimeter wave sources working at frequencies in the range of 10-100 GHz suitable for photon-assisted transport experiments. We use a modified FM tip to plough grooves into superconducting material, thus defining Josephson junctions. The weak ...


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