"Electro-flux" effect in superconducting hybrid Aharonov-Bohm rings

Details "Electro-flux" effect in superconducting hybrid Aharonov-Bohm rings "Electro-flux" effect in superconducting hybrid Aharonov-Bohm rings

1996-03-26

arxiv.org/abs/cond-mat/9603161v1

Physics

Condensed Matter

4 pages RevTex including three Postscript figures. Also available at http://www.tn.tudelft.nl/tn/thssci.html

Scientific paper

10.1103/PhysRevB.54.R772

We have extended the circuit theory of Andreev conductance [Phys.~Rev.~Lett. {\bf 73}, 1420 (1994)] to diffusive superconducting hybrid structures that contain an Aharonov-Bohm ring. The electrostatic potential distribution in the system is predicted to be flux-dependent with a period of the superconducting flux quantum $\Phi_{0}=h/2e$. When at least one tunnel barrier is present, the conductance of the system oscillates with the same period.

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