435 citations · 738 across the 8 of their papers we have counts for
6 papers · 1 filter
Observation of Josephson coupling through an interlayer of antiferromagnetically ordered chromium
M. Weides, M. Disch, H. Kohlstedt +1
The supercurrent transport in metallic Josephson tunnel junctions with an additional interlayer made up by chromium, being an itinerant antiferromagnet, was studied. Uniform Joseph…
Josephson tunnel junctions with ferromagnetic $\Fe_{0.75}\Co_{0.25}$ barriers
D. Sprungmann, K. Westerholt, H. Zabel +2
Josephson tunnel junctions with the strong ferromagnetic alloy $\Fe_{0.75}\Co_{0.25}$ as the barrier material were studied. The junctions were prepared with high quality down to a…
Escape Rate Measurements and Microwave Spectroscopy of 0, pi, and 0-pi ferromagnetic Josephson Tunnel Junctions
J. Pfeiffer, T. Gaber, D. Koelle +7
We present experimental studies of high quality underdamped 0, pi, and 0-pi ferromagnetic Josephson tunnel junctions of intermediate length L (lambda_J < L < 5 lambda_J, where lamb…
Low-T_c Josephson junctions with tailored barrier
M. Weides, C. Schindler, H. Kohlstedt
Nb/Al_2O_3/Ni_{0.6}Cu_{0.4}/Nb based superconductor-insulator-ferromagnet-superconductor (SIFS) Josephson tunnel junctions with a thickness step in the metallic ferromagnetic \Ni_{…
0-pi Josephson tunnel junctions with ferromagnetic barrier
M. Weides, M. Kemmler, E. Goldobin +4
We fabricated high quality Nb/Al_2O_3/Ni_{0.6}Cu_{0.4}/Nb superconductor-insulator-ferromagnet-superconductor Josephson tunnel junctions. Using a ferromagnetic layer with a step-li…
Fabrication of high quality ferromagnetic Josephson junctions
M. Weides, K. Tillmann, H. Kohlstedt
We present ferromagnetic Nb/Al2O3/Ni60Cu40/Nb Josephson junctions (SIFS) with an ultrathin Al2O3 tunnel barrier. The junction fabrication was optimized regarding junction insulatio…