TY  - JOUR
AU  - Weides, M.
AU  - Schindler, C.
AU  - Kohlstedt, H.
TI  - Low T_c Josephson junctions with tailored barrier
JO  - Journal of applied physics
VL  - 101
SN  - 0021-8979
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PreJuSER-56184
SP  - 063902
PY  - 2007
N1  - Record converted from VDB: 12.11.2012
AB  - Nb/Al2O3/Ni0.6Cu0.4/Nb based superconductor-insulator-ferromagnet-superconductor Josephson tunnel junctions with a thickness step in the metallic ferromagnetic Ni0.6Cu0.4 interlayer were fabricated. The step was defined by optical lithography and controlled etching. The step height is on the scale of a few angstroms. Experimentally determined junction parameters by current-voltage characteristics and Fraunhofer pattern indicate uniform ferromagnetic layer thicknesses and the same interface transparencies for etched and nonetched F layers. This technique could be used to tailor low-T-c Josephson junctions having controlled critical current densities at defined parts of the junction area, as needed for tunable resonators, magnetic-field driven electronics, or phase modulated devices. (c) 2007 American Institute of Physics.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000245317700088
DO  - DOI:10.1063/1.2655487
UR  - https://juser.fz-juelich.de/record/56184
ER  -