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- W2015431356 abstract "We have studied critical current densities J <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>c</inf> , pinning force densities P and resistivities ρ in co-evaporated Pb-Ge mixtures in the range <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>approx 30-90</tex> Vol.% Pb. Hot spot problems were eliminated by enhanced adhesion to the substrate. The films geometry was determined by lift-off photolithographic technique. Pinning force densities, estimated from the field dependence of J <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>c</inf> , obey a scaling law. The absolute value of the pinning force density maximum P <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>MAX</inf> increases markedly with decreasing Pb content, up to a maximum around ≈ 50 Vol.% Pb. The self current density is not directly correlated with P <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>MAX</inf> . At the lower part of Pb concentration, percolation effects have been observed. Values of ρJ <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>c</inf> and ρJ <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>c</inf> <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> were calculated showing that this system is inferior to existing A-15 materials for use as a superconducting switch material." @default.
- W2015431356 created "2016-06-24" @default.
- W2015431356 creator A5061954975 @default.
- W2015431356 date "1981-01-01" @default.
- W2015431356 modified "2023-10-16" @default.
- W2015431356 title "Critical currents and pinning forces in the PB - GE system" @default.
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- W2015431356 doi "https://doi.org/10.1109/tmag.1981.1061117" @default.
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