152 citations · 1.4k across the 53 of their papers we have counts for
53 papers
Magnetic flux penetration in nanoscale wedge-shaped superconducting thin films
L. B. L. G. Pinheiro, L. Jiang, E. A. Abbey +9
Thickness uniformity is regarded as an important parameter in designing thin film devices. However, some applications based on films with non-uniform thickness have recently emerge…
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…
Excitation and relaxation dynamics of spin-waves triggered by ultrafast photo-induced demagnetization in a ferrimagnetic insulator
Yusuke Hashimoto, Koji Sato, Tom H. Johansen +1
Excitation and propagation dynamics of spin waves in an iron-based garnet film under out-of-plane magnetic field were investigated by time-resolved magneto-optical imaging. The exp…
Collective Directional Locking of Colloidal Monolayers on a Periodic Substrate
Ralph L. Stoop, Arthur V. Straube, Tom H Johansen +1
We investigate the directional locking effects that arise when a monolayer of paramagnetic colloidal particles is driven across a triangular lattice of magnetic bubbles. We use an…
Snell's law for spin waves at a 90-degree domain wall
Tomosato Hioki, Rei Tsuboi, Tom. H. Johansen +2
We report experimental observation of the refraction and re ection of propagating magnetostatic spin waves crossing a 90-degree domain wall (DW) in terms of time-resolved magneto-o…