Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 21/06/1993 |
---|---|
<mark>Journal</mark> | Journal of Physics: Condensed Matter |
Issue number | 25 |
Volume | 5 |
Number of pages | 20 |
Pages (from-to) | 4187-4206 |
Publication Status | Published |
<mark>Original language</mark> | English |
After presenting an intuitive picture of quasi-particle transport in mesoscopic superconductors, which emphasizes the intimate relation between Andreev scattering and zero resistivity, we develop a general theory of DC transport in mesoscopic normal-superconducting structures. Generalized multi-probe conductance formulae are derived, which take into account not only the effect of Andreev scattering on transport coefficients. but also the non-conservation of quasi-particle charge which arises in the presence of a superconducting condensate. Experiments on quasi-particle charge imbalance are described naturally by this approach.