Superconducting MoSi nanowires
作者: J S LehtinenA KemppinenE MykkänenM PrunnilaA J Manninen
作者单位: 1VTT Technical Research Centre of Finland Ltd, FI-02150 Espoo, Finland
刊名: Superconductor Science and Technology, 2018, Vol.31 (1)
来源数据库: Institute of Physics Journal
DOI: 10.1088/1361-6668/aa954b
原始语种摘要: We have fabricated disordered superconducting nanowires of molybdenium silicide. A molybdenium nanowire is first deposited on top of silicon, and the alloy is formed by rapid thermal annealing. The method allows tuning of the crystal growth to optimize e.g. the resistivity of the alloy for potential applications in quantum phase slip (QPS) devices and superconducting nanowire single-photon detectors. The wires have effective diameters from 42 to 79 nm, enabling the observation of crossover from conventional superconductivity to regimes affected by thermal and quantum fluctuations. In the smallest diameter wire and at temperatures well below the superconducting critical temperature, we observe residual resistance and negative magnetoresistance, which can be considered as fingerprints of...
全文获取路径: IOP  (合作)

  • diameter 直径
  • thermal 热的
  • fabricated 制造
  • silicon 
  • quantum 量子
  • crystal 晶体
  • resistivity 电阻率
  • optimize 优选
  • crossover 交叉
  • tuning