S.G Lachenmann , A Förster , I Friedrich , D Uhlisch , Th Schäpers , A Kastalsky , A.A Golubov
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Superconductor/semiconductor step junctions: the basic element for hybrid three terminal devices
We present experimental data on superconductor/semiconductor hybrid systems which are based on the two-dimensional electron gas at the surface of p-type InAs. A short distance (≈200 nm) between the Nb contacts is obtained using step geometry. The best junctions show a high product of critical current times normal resistance of about 1 mV at T=4.2 K.
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