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Magnetotransport properties of periodic Nb-2DEG structures

Eroms, Jonathan ; Weiss, Dieter ; Boeck, J ; Borghs, S


We report on magnetotransport experiments in periodic superconductor�semiconductor structures. The samples consist of a square lattice of niobium filled antidots in a high mobility InAs/AlGaSb heterostructure. The lattice period was varied between a=300 and 1000 nm. To judge the quality of the Nb�InAs- contacts, planar superconductor� semiconductor contacts were included on the same chip ...


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