% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Weides:58463, author = {Weides, M. and Kohlstedt, H. and Waser, R. and Kemmler, M. and Pfeiffer, J. and Koelle, D. and Kleiner, R. and Goldobin, E.}, title = {{F}erromagnetic o-pi {J}osephson junctions}, journal = {Applied physics / A}, volume = {89}, issn = {0947-8396}, address = {Berlin}, publisher = {Springer}, reportid = {PreJuSER-58463}, pages = {613}, year = {2007}, note = {Record converted from VDB: 12.11.2012}, abstract = {We present a study on low-T-c superconductor-insulator-ferromagnet-superconductor (SIFS) Josephson junctions. SIFS junctions have gained considerable interest in recent years because they show a number of interesting properties for future classical and quantum computing devices. We optimized the fabrication process of these junctions to achieve a homogeneous current transport, ending up with high-quality samples. Depending on the thickness of the ferromagnetic layer and on temperature, the SIFS junctions are in the ground state with a phase drop of either 0 or pi. By using a ferromagnetic layer with variable step-like thickness along the junction, we obtained a so-called 0-pi Josephson junction, in which 0 and pi ground states compete with each other. At a certain temperature the 0 and pi parts of the junction are perfectly symmetric, i.e. the absolute critical current densities are equal. In this case the degenerate ground state corresponds to a vortex of supercurrent circulating clock- or counterclockwise and creating a magnetic flux which carries a fraction of the magnetic flux quantum phi(0).}, keywords = {J (WoSType)}, cin = {IFF-6 / CNI / JARA-FIT}, ddc = {530}, cid = {I:(DE-Juel1)VDB786 / I:(DE-Juel1)VDB381 / $I:(DE-82)080009_20140620$}, pnm = {Grundlagen für zukünftige Informationstechnologien}, pid = {G:(DE-Juel1)FUEK412}, shelfmark = {Materials Science, Multidisciplinary / Physics, Applied}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000249663500007}, doi = {10.2007/s00339-007-4206-3}, url = {https://juser.fz-juelich.de/record/58463}, }