12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Multi-probe conductance formulae for mesoscopic...
View graph of relations

« Back

Multi-probe conductance formulae for mesoscopic superconductors

Research output: Contribution to journalJournal article

Published

Journal publication date21/06/1993
JournalJournal of Physics: Condensed Matter
Journal number25
Volume5
Number of pages20
Pages4187-4206
Original languageEnglish

Abstract

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.