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Conductance fluctuations in mesoscopic normal-metal/superconductor samples | | Klaus Hecker
; Helmut Hegger
; Alexander Altland
; Klaus Fiegle
; | | Date: |
21 Aug 1997 | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Superconductivity | cond-mat.mes-hall cond-mat.supr-con | | Abstract: | We study the magnetoconductance fluctuations of mesoscopic normal-metal/superconductor (NS) samples consisting of a gold-wire in contact with a niobium film. The magnetic field strength is varied over a wide range, including values that are larger than the upper critical field B_c2 of niobium. In agreement with recent theoretical predictions we find that in the NS sample the rms of the conductance fluctuations (CF) is by a factor of 2.8 +/- 0.4 larger than in the high field regime where the entire system is driven normal conducting. Further characteristics of the CF are discussed. | | Source: | arXiv, cond-mat/9708162 | | Services: | Forum | Review | PDF | Favorites | |
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