Circuit Theory of Andreev Conductance
- 5 September 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 73 (10) , 1420-1423
- https://doi.org/10.1103/physrevlett.73.1420
Abstract
Conductance of small normal metal structures adjacent to a superconductor is determined by coherent Andreev reflection. We show that under certain limitations the conductance can be found by means of an extended circuit theory. The theory deals with two types of elements: tunnel junctions and diffusive conductors and provides the basis for practical calculations. A new device proposed illustrates the advantages of the theory.Keywords
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