Andreev tunneling in charge pumping with SINIS turnstiles

T. Aref, V.F. Maisi, M.V. Gustafsson, P. Delsing, J.P. Pekola

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Abstract

We present measurements on hybrid single-electron turnstiles with superconducting leads contacting a normal island (SINIS). We observe Andreev tunneling of electrons influencing the current plateau characteristics of the turnstiles under radio-frequency pumping. The data is well accounted for by numerical simulations. We verify the dependence of the Andreev tunneling rate on the turnstile's charging energy. Increasing the charging energy effectively suppresses the Andreev current.
Original languageEnglish
Article number37008
Number of pages6
JournalEurophysics Letters
Volume96
Issue number3
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Keywords

  • superconductivity
  • single electron devices
  • Andreev effect
  • proximity effects

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    Aref, T., Maisi, V. F., Gustafsson, M. V., Delsing, P., & Pekola, J. P. (2011). Andreev tunneling in charge pumping with SINIS turnstiles. Europhysics Letters, 96(3), [37008]. https://doi.org/10.1209/0295-5075/96/37008