Dendritic magnetic instability in superconducting MgB2 films

Abstract

– Magneto-optical imaging reveal that below 10 K the penetration of magnetic flux in MgB2 films is dominated by dendritic structures abruptly formed in response to an applied field. The dendrites show a temperature-dependent morphology ranging from quasi-1D at 4 K to large tree-like structures near 10 K. This behaviour is responsible for the anomalous noise… (More)

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@inproceedings{Johansen2002DendriticMI, title={Dendritic magnetic instability in superconducting MgB2 films}, author={Tom H. Johansen and M. Baziljevich and D. V. Shantsev and P{\aa}l Erik Goa and Yuri M. Galperin and W. N. Kang and H. J. Kim and Eun Mi Choi and S. - I. Lee}, year={2002} }