Controlling magnetic flux penetration in low-T C superconducting films and hybrids

F Colauto, M Motta, WA Ortiz - Superconductor Science and …, 2020 - iopscience.iop.org
In realistic situations, a typical scenario for applications of type II superconductors
necessarily includes vortices, usually in the presence of currents. Under these …

Dynamics and morphology of dendritic flux avalanches in superconducting films

JI Vestgården, DV Shantsev, YM Galperin… - Physical Review B …, 2011 - APS
We develop a fast numerical procedure for the analysis of nonlinear and nonlocal
electrodynamics of type-II superconducting films in transverse magnetic fields coupled with …

Enhanced pinning in superconducting thin films with graded pinning landscapes

M Motta, F Colauto, WA Ortiz, J Fritzsche… - Applied physics …, 2013 - pubs.aip.org
A graded distribution of antidots in superconducting a-Mo 79 Ge 21 thin films has been
investigated by magnetization and magneto-optical imaging measurements. The pinning …

Quasiparticle Spectroscopy, Transport, and Magnetic Properties of Films Used in Superconducting Qubits

KR Joshi, S Ghimire, MA Tanatar, A Datta, JS Oh… - Physical Review …, 2023 - APS
Niobium thin films on silicon substrate used in the fabrication of superconducting qubits
have been characterized using scanning and transmission electron microscopy, electrical …

Crossing fields in thin films of isotropic superconductors

VK Vlasko-Vlasov, F Colauto, AA Buzdin, D Carmo… - Physical Review B, 2016 - APS
We study interactions of perpendicular and longitudinal magnetic fields in niobium films of
different thickness in a wide range of temperatures below the superconducting transition …

Suppression of flux avalanches in superconducting films by electromagnetic braking

F Colauto, E Choi, JY Lee, SI Lee, EJ Patiño… - Applied Physics …, 2010 - pubs.aip.org
Magnetic fields perpendicular to superconducting films often trigger vortex avalanches,
which always are very harmful for electronic devices and other applications. Such …

Visualizing the ac magnetic susceptibility of superconducting films via magneto-optical imaging

M Motta, F Colauto, R Zadorosny, TH Johansen… - Physical Review B …, 2011 - APS
We have established a link between the global ac response and the local flux distribution of
superconducting films by combining magnetic ac susceptibility, dc magnetization, and …

Magnetic flux avalanches in Nb/NbN thin films

LBLG Pinheiro, M Caputo, C Cirillo… - Low Temperature …, 2020 - pubs.aip.org
Technological applications of NbN thin films may be threatened by the development of
magnetic flux avalanches of thermomagnetic origin appearing in a large portion of the …

First observation of flux avalanches in a-MoSi superconducting thin films

F Colauto, M Motta, A Palau, MG Blamire… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
We have observed the occurrence of dendritic flux avalanches in an amorphous film of Mo
84 Si 16. These events are understood to have a thermomagnetic origin and involve the …

Vortex-antivortex annihilation dynamics in a square mesoscopic superconducting cylinder

E Sardella, PN Lisboa Filho, CC de Souza Silva… - Physical Review B …, 2009 - APS
The dynamics of the annihilation of a vortex-antivortex pair is investigated. The pair is
activated magnetically during the run of a simulated hysteresis loop on a square mesoscopic …