Speed limit to the Abrikosov lattice in mesoscopic superconductors

G Grimaldi, A Leo, P Sabatino, G Carapella, A Nigro… - Physical Review B, 2015 - APS
We study the instability of the superconducting state in a mesoscopic geometry for the low
pinning material Mo 3 Ge characterized by a large Ginzburg-Landau parameter. We observe …

Quasiparticle scattering time in niobium superconducting films

A Leo, G Grimaldi, R Citro, A Nigro, S Pace… - Physical Review B …, 2011 - APS
We study the quasiparticle energy relaxation processes in superconducting Nb films of
different thicknesses corresponding to different electron mean-free paths in a nonequilibrium …

Influence of artificial pinning on vortex lattice instability in superconducting films

AV Silhanek, A Leo, G Grimaldi… - New Journal of …, 2012 - iopscience.iop.org
In superconducting films under an applied dc current, we analyze experimentally and
theoretically the influence of engineered pinning on the vortex velocity at which the flux-flow …

Electrical transport and pinning properties of Nb thin films patterned with focused ion beam-milled washboard nanostructures

OV Dobrovolskiy, E Begun, M Huth… - New Journal of …, 2012 - iopscience.iop.org
A careful analysis of the magneto-transport properties of epitaxial nanostructured Nb thin
films in the normal and the mixed state is performed. The nanopatterns were prepared by …

Flux penetration in a superconducting film partially capped with a conducting layer

J Brisbois, VN Gladilin, J Tempere, JT Devreese… - Physical Review B, 2017 - APS
The influence of a conducting layer on the magnetic flux penetration in a superconducting
Nb film is studied by magneto-optical imaging. The metallic layer partially covering the …

Controlling flux flow dissipation by changing flux pinning in superconducting films

G Grimaldi, A Leo, A Nigro, AV Silhanek… - Applied Physics …, 2012 - pubs.aip.org
We study the flux flow state in superconducting materials characterized by rather strong
intrinsic pinning, such as Nb, NbN, and nanostructured Al thin films, in which we drag the …

[HTML][HTML] Angular dependence of vortex instability in a layered superconductor: the case study of Fe (Se, Te) material

G Grimaldi, A Leo, A Nigro, S Pace, V Braccini… - Scientific Reports, 2018 - nature.com
Anisotropy effects on flux pinning and flux flow are strongly effective in cuprate as well as
iron-based superconductors due to their intrinsically layered crystallographic structure …

Vortex instability in molybdenum-germanium superconducting films

M Liang, MN Kunchur - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We studied the high driving force regime of the current-voltage transport response in the
mixed state of amorphous molybdenum-germanium superconducting films to the point …

Fast dynamics of vortices in superconductors

OV Dobrovolskiy - arxiv preprint arxiv:2311.08281, 2023 - arxiv.org
The last decade has been marked by great interest in the dynamics of vortices moving at
high ($> $10\, km/s) velocities in superconductors. However, the flux-flow instability (FFI) …

Onset, evolution, and magnetic braking of vortex lattice instabilities in nanostructured superconducting films

OA Adami, ŽL Jelić, C Xue, M Abdel-Hafiez, B Hackens… - Physical Review B, 2015 - APS
In 1976, Larkin and Ovchinnikov [Zh. Eksp. Teor. Fiz. 68, 1915 (1975)[Sov. Phys.–JETP 41,
960 (1976)]] predicted that vortex matter in superconductors driven by an electrical current …