Multiple Andreev Reflections Revealed by the Energy Distribution of Quasiparticles

作者: F. Pierre , A. Anthore , H. Pothier , C. Urbina , D. Esteve

DOI: 10.1103/PHYSREVLETT.86.1078

关键词: Andreev reflectionQuasiparticleDistribution functionEnergy distributionSuperconductivitySpectroscopyFunction (mathematics)Quantum mechanicsRoundingPhysicsCondensed matter physics

摘要: We have performed the tunnel spectroscopy of energy distribution function quasiparticles in 5-microm-long silver wires connected to superconducting reservoirs biased at different potentials. The f(E) presents several steps, which are manifestations multiple Andreev reflections NS interfaces. rounding steps is well explained by electron-electron interactions.

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