233 citations · 1.2k across the 20 of their papers we have counts for
5 papers · 1 filter
Dendritic flux patterns in MgB2 films
T. H. Johansen, M. Baziljevich, D. V. Shantsev +7
Magneto-opitcal studies of a c-oriented epitaxial MgB2 film with critical current density 10^7 A/cm^2 demonstrate a breakdown of the critical state at temperatures below 10 K [cond…
Scaling and exact solutions for the flux creep problem in a slab superconductor
D. V. Shantsev, Y. M. Galperin, T. H. Johansen
The flux creep problem for a superconductor slab placed in a constant or time-dependent magnetic field is considered. Logarithmic dependence of the activation energy on the current…
Superconductor strip with transport current: Magneto-optical study of current distribution and its relaxation
A. V. Bobyl, D. V. Shantsev, Y. M. Galperin +3
The dynamics of magnetic flux distributions across a YBaCuO strip carrying transport current is measured using magneto-optical imaging at 20 K. The current is applied in pulses of…
Faraday rotation spectra of bismuth-substituted ferrite garnet films with in-plane magnetization
L. E. Helseth, R. W. Hansen, E. I. Il'yashenko +2
Single crystalline films of bismuth-substituted ferrite garnets have been synthesized by the liquid phase epitaxy method where GGG substrates are dipped into the flux. The growth p…
Dendritic magnetic instability in superconducting MgB2 films
T. H. Johansen, M. Baziljevich, D. V. Shantsev +7
Magneto-opitcal studies of a c-oriented epitaxial MgB2 film show that below 10 K the global penetration of vortices is dominated by complex dendritic structures abruptly entering t…