Energy dependence of current noise in double-barrier normal-superconducting structures
arXiv:cond-mat/0502453 · doi:10.1140/epjb/e2006-00161-6
Abstract
We study theoretically the current-noise energy dependence for a N-N'-S structure, where N and S stand for bulk normal metal and superconductor, respectively, and N' for a short diffusive normal metal. Using quasiclassical theory of current fluctuations we obtain explicit expressions for the noise valid for arbitrary distributions of channel transparencies on both junctions. The differential Fano factor turns out to depend on both junction transparencies and the ratio of the two conductances. We conclude that measurement of differential conductance and noise can be used to probe the channel distribution of the interfaces.
arXiv comment9 pages, 6 figures
References in corpus (28)
- Shot Noise in Mesoscopic Conductors
- Random-Matrix Theory of Quantum Transport
- Electron Counting Statistics and Coherent States of Electric Current
- Novel Circuit Theory of Andreev Reflection
- Interference of two electrons entering a superconductor
- Subgap Conductivity of a Superconducting-Normal Tunnel Interface
- Full counting statistics of electron transfer between superconductors
- Re-entrance of the metallic conductance in a mesoscopic proximity superconductor
- Induced superconductivity distinguishes chaotic from integrable billiards
- Doubled Shot Noise In Disordered Normal-Metal-Superconductor Junctions
- Full Current Statistics in Diffusive Normal-Superconductor Structures
- Full Counting Statistics of a Superconducting Beam Splitter
- Doubled Full Shot Noise in Quantum Coherent Superconductor - Semiconductor Junctions
- Circuit Theory for Full Counting Statistics in Multi-Terminal Circuits
- Semiclassical theory of shot noise in disordered SN contacts
- Semiclassical theory of current correlations in chaotic dot-superconductor systems
- Theory of charge transport in diffusive normal metal / conventional superconductor point contacts
- Cascade approach to current fluctuations in a chaotic cavity
- Full counting statistics of incoherent Andreev transport
- Subgap noise of a superconductor-normal-metal tunnel interface
- Superconductive proximity effect in interacting disordered conductors
- Andreev Conductance of Chaotic and Integrable Quantum Dots
- Mesoscopic proximity effect in double barrier Superconductor/Normal Metal junctions
- Energy dependent counting statistics in diffusive superconducting tunnel junctions
- Nonlinear shot noise in mesoscopic diffusive normal-superconducting systems
- Energy dependence of current noise in superconducting/normal metal junctions
- Full counting statistics of Andreev scattering in an asymmetric chaotic cavity
- Phase dependent current statistics in short-arm Andreev interferometer