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Full Counting Statistics of Andreev Tunneling

Ville F. Maisi, Dania Kambly, Christian Flindt, Jukka P. Pekola

DOI 10.1103/PhysRevLett.112.036801 · Physical Review Letters

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Abstract

We employ a single-charge counting technique to measure the full counting statistics of Andreev events in which Cooper pairs are either produced from electrons that are reflected as holes at a superconductor–normal-metal interface or annihilated in the reverse process. The full counting statistics consists of quiet periods with no Andreev processes, interrupted by the tunneling of a single electron that triggers an avalanche of Andreev events giving rise to strongly super-Poissonian distributions.

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FormulaReported Tc (K)Pressure (GPa)Type
Al

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—Pressure not reportedunknown

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