MP

Myriam Pannetier

3 records found

We report the magneto-optical observation of a surprising fourfold symmetry of the flux penetration in a superconducting YBa2Cu3O7−δ thin-film disk containing a square array of antidots, leading to an angular variation of the critical current by a factor of nearly 2. This behavio ...
Using advanced magneto-optics, the field and current distributions in superconducting thin film (formula presented) rings in an externally applied magnetic field are studied experimentally. The observations are in close agreement with numerical calculations. During the initial fl ...
In a recent paper [1], it has been shown from transport measurements that artificial reversible pinning can be created by the application of a magnetic tape on the surface of a thin superconducting film. We study the influence of a periodic array of magnetic stripes, generated fr ...