Anomalous flux avalanche morphology in a a-MoGe superconducting film with a square antidot lattice - experiment and simulation

Details Anomalous flux avalanche morphology in a a-MoGe superconducting film with a square antidot lattice - experiment and simulation Anomalous flux avalanche morphology in a a-MoGe superconducting film with a square antidot lattice - experiment and simulation

2011-09-12

arxiv.org/abs/1109.2532v1

Physics

Condensed Matter

Superconductivity

3 pages, 3 figures

Scientific paper

We have employed magneto-optical imaging to visualize the occurrence of flux avalanches in a superconducting film of a-MoGe. The specimen was decorated with square antidots arranged in a square lattice. We observed avalanches with the anomalous habit of forming trees where the trunk is perpendicular to the main axis of the square lattice, whereas the branches form angles of 45 degrees. The overall features of the avalanches, and in particular the 45 degree direction of the branches, were confirmed by numerical simulations.

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