| Literature DB >> 12731993 |
W Guichard1, M Aprili, O Bourgeois, T Kontos, J Lesueur, P Gandit.
Abstract
We have measured the ground state of ferromagnetic Josephson junctions using a single dc SQUID (superconducting quantum interference device).We show that the Josephson coupling is either positive (0 coupling) or negative (pi coupling) depending on the ferromagnetic layer thickness. As expected, the sign change of the Josephson coupling is observed as a shift of half a quantum flux in the SQUID diffraction pattern when operating in the linear limit.Year: 2003 PMID： 12731993 DOI： 10.1103/PhysRevLett.90.167001
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161