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Singularity-matching peaks in a superconducting single-electron transistor

Y. Nakamura, A. N. Korotkov, C. D. Chen, J. S. Tsai

DOI 10.1103/PhysRevB.56.5116 · Physical Review B

T1

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Abstract

We report the experimental observation of the recently predicted peaks on the I−V curve of a superconducting single-electron transistor at relatively high temperatures. The peaks are due to the matching of singularities in the quasiparticle density of states in two electrodes of a tunnel junction. The energy shift due to Coulomb blockade provides the matching at finite voltage.

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FormulaReported Tc (K)Pressure (GPa)Type
Al

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—Pressure unresolvedunknown

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