Andreev interferometer with three superconducting electrodes

Autor:	Galaktionov, A. V., Zaikin, A. D., Kuzmin, L. S
Rok vydání:	2012
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 85, 224523 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.85.224523
Popis:	We develop a quasiclassical theory of Andreev interferometers with three superconducting electrodes. Provided tunneling interface resistance between one superconducting electrode and the normal metal strongly exceeds two others, significant current sensitivity to the external magnetic flux is observed only at subgap voltages. If all barrier conductances are comparable, multiple Andreev reflection comes into play and substantial current modulation can be achieved in both subgap and overgap voltage regimes. Our analysis reveals a large variety of interesting features which can be used for performance optimization of Andreev interferometers. Comment: 9 pages, 13 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1204.6169 Zobrazit plný text záznamu View this record from Arxiv