Journal Article

PreJuSER-56184

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Low T_c Josephson junctions with tailored barrier

Weides, M.FZJ* ; Schindler, C.FZJ* ; Kohlstedt, H.FZJ*

2007
American Institute of Physics Melville, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/17179  doi:10.1063/1.2655487

Abstract: 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.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Elektronische Materialien (IFF-6)
2. Center of Nanoelectronic Systems for Information Technology (CNI)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2007

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Database coverage:

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