29 citations · 52 across the 7 of their papers we have counts for
6 papers · 1 filter
Complete Suppression of Thermomagnetic Instabilities in Nb Superconducting Films by Combined Metallic Layers and Ion Irradiation
D. Carmo, A. M. H. de Andrade, R. Giulian +3
Thermomagnetic instabilities in superconducting films can trigger flux avalanches that disrupt the critical state and impair the performance of superconducting devices. Here we inv…
Maximum limit of connectivity in rectangular superconducting films with an oblique weak link
F. Colauto, D. Carmo, A. M. H. de Andrade +3
A method for measuring the electrical connectivity between parts of a rectangular superconductor was developed for weak links making an arbitrary angle with the long side of the sa…
Enhancing the effective critical current density in a Nb superconducting thin film by cooling in an inhomogeneous magnetic field
D. A. D. Chaves, I. M. de Araújo, D. Carmo +7
Quantitative magneto-optical imaging of a type-II superconductor thin film cooled under zero, homogeneous, and inhomogeneous applied magnetic fields, indicates that the latter proc…
Measurement of critical current flow and connectivity in systems of joined square superconducting plates
F. Colauto, D. Carmo, A. M. H. de Andrade +4
A method to measure the electrical connectivity between square superconducting plates joined by weak link interfaces is presented. It is based on observation of lines where the flo…
Active control of thermomagnetic avalanches in superconducting Nb films with tunable anisotropy
D. Carmo, F. Colauto, A. M. H. de Andrade +4
Active triggering and manipulation of ultrafast flux dynamics in superconductors are demonstrated in films of Nb. Controlled amounts of magnetic flux were injected from a point alo…
Spin texture on top of vortex avalanches in Nb/Al_2O_3/Co thin film heterostructures
R. F. Lopes, D. Carmo, F. Colauto +5
We report on magneto-optical imaging, magnetization, Hall effect and magneto-resistance experiments in Nb/Al_2O_3/Co thin film heterostructures. The magnetic field is applied perpe…