Study and optimization of ion-irradiated High-Tc Josephson nanoJunctions by Monte Carlo simulations

Details Study and optimization of ion-irradiated High-Tc Josephson nanoJunctions by Monte Carlo simulations Study and optimization of ion-irradiated High-Tc Josephson nanoJunctions by Monte Carlo simulations

2007-05-10

arxiv.org/abs/0705.1438v1

Physics

Condensed Matter

Superconductivity

14 pages, 6 Figures. accepted in Journal of Applied Physics

Scientific paper

10.1063/1.2737386

High Tc Josephson nanoJunctions (HTc JnJ) made by ion irradiation have remarkable properties for technological applications. However, the spread in their electrical characteristics increases with the ion dose. We present a simple model to explain the JnJ inhomogeneities, which accounts quantitatively for experimental data. The spread in the slit's width of the irradiation mask is the limiting factor.Monte Carlo simulations have been performed using different irradiation conditions to study their influence on the spread of the JnJ charcateristics. A "universal" behavior has been evidenced, which allows to propose new strategies to optimize JnJ reproducibility.

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