PT Journal
AU Boogaard, GR
   Verbruggen, AH
   Belzig, W
   Klapwijk T.M.
TI Resistance of superconducting nanowires connected to normal-metal leads
SO Phys. Rev. B
JI Phys. Rev. B
PY 2004
BP 220503(R)(1
EP 4)
VL 69
AB We study experimentally the low temperature resistance of superconducting nanowires connected to normal metal reservoirs. Wefind that a substantial fraction of the nanowires is resistive, down to the lowest tempera-ture measured, indicative of an intrinsic boundary resistance due to the Andreev-conversion of normal current to supercurrent. The results are successfully analyzed in terms of the kinetic equations for diffusive superconductors.
ER