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Article Dans Une Revue Physica C: Superconductivity and its Applications Année : 2001

Enhanced shot noise in long quasi-diffusive S-N-S junctions

Résumé

We present shot noise measurements on superconducting–normal–superconducting junction (S–N–S) where the superconductor is Niobium and the normal conductor is a two-dimensional electron gas in a InAlAs/InGaAs heterojunction. The aim of the measurements was to check the recent predictions [Phys. Rev. Lett. 83 (1999) 2050] that in the limit of incoherent multiple Andreev reflection (I-MAR), i.e. in the elastic regime for Thouless energy much lower than the superconducting gap, the current–voltage characteristics should be quasi-linear but I-MAR could be detected in the shot noise.

Dates et versions

hal-01076200 , version 1 (21-10-2014)

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Patrice Roche, Hélène Perrin, Christian D.C. Glattli, Hiroshi Takayanagi, Tatsushi Akazaki. Enhanced shot noise in long quasi-diffusive S-N-S junctions. Physica C: Superconductivity and its Applications, 2001, 352, pp.73. ⟨10.1016/S0921-4534(00)01697-X⟩. ⟨hal-01076200⟩
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