% 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{Sickinger:22767, author = {Sickinger, H. and Lipman, A. and Weides, M. and Mints, R.G. and Kohlstedt, H. and Koelle, D. and Kleiner, R. and Goldobin, E.}, title = {{E}xperimental evidence of a phi-{J}osephson {J}unction}, journal = {Physical review letters}, volume = {109}, issn = {0031-9007}, address = {College Park, Md.}, publisher = {APS}, reportid = {PreJuSER-22767}, pages = {107002}, year = {2012}, note = {We acknowledge financial support by the German Israeli Foundation (Grant No. G-967-126.14/2007) and DFG (via SFB/TRR-21, project A5 as well via project Go-1106/3). H. S. gratefully acknowledges support by the Evangelisches Studienwerk e. V. Villigst.}, abstract = {We demonstrate experimentally the existence of Josephson junctions having a doubly degenerate ground state with an average Josephson phase psi = +/-phi. The value of phi can be chosen by design in the interval 0 < phi < pi. The junctions used in our experiments are fabricated as 0-pi Josephson junctions of moderate normalized length with asymmetric 0 and pi regions. We show that (a) these phi Josephson junctions have two critical currents, corresponding to the escape of the phase c from -phi and +phi states, (b) the phase psi can be set to a particular state by tuning an external magnetic field, or (c) by using a proper bias current sweep sequence. The experimental observations are in agreement with previous theoretical predictions.}, keywords = {J (WoSType)}, cin = {PGI-7 / JARA-FIT}, ddc = {550}, cid = {I:(DE-Juel1)PGI-7-20110106 / $I:(DE-82)080009_20140620$}, pnm = {Grundlagen für zukünftige Informationstechnologien}, pid = {G:(DE-Juel1)FUEK412}, shelfmark = {Physics, Multidisciplinary}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000308458900017}, doi = {10.1103/PhysRevLett.109.107002}, url = {https://juser.fz-juelich.de/record/22767}, }