Superconducting vortex pinning with artificial magnetic nanostructures

M Vélez, JI Martín, JE Villegas, A Hoffmann… - Journal of Magnetism …, 2008 - Elsevier
This review is dedicated to summarizing the recent research on vortex dynamics and
pinning effects in superconducting films with artificial magnetic structures. The fabrication of …

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 …

Supercurrent distribution in real-space and anomalous paramagnetic response in a superconducting quasicrystal

T Fukushima, N Takemori, S Sakai, M Ichioka… - Physical Review …, 2023 - APS
We theoretically study the real-space distribution of the supercurrent that flows under a
uniform vector potential in a two-dimensional quasiperiodic structure. This is done by …

Realization of Artificial Ice Systems for Magnetic Vortices in a Superconducting<? format?> MoGe Thin Film with Patterned Nanostructures

ML Latimer, GR Berdiyorov, ZL Xiao, FM Peeters… - Physical Review Letters, 2013 - APS
We report an anomalous matching effect in MoGe thin films containing pairs of circular holes
arranged in such a way that four of those pairs meet at each vertex point of a square lattice …

Strongly Enhanced Pinning of Magnetic Vortices in Type-II Superconductors<? format?> by Conformal Crystal Arrays

D Ray, CJ Olson Reichhardt, B Janko, C Reichhardt - Physical review letters, 2013 - APS
Conformal crystals are nonuniform structures created by a conformal transformation of
regular two-dimensional lattices. We show that gradient-driven vortices interacting with a …

Enhancing the critical current of a superconducting film in a wide range of magnetic fields with a conformal array of nanoscale holes

YL Wang, ML Latimer, ZL Xiao, R Divan, LE Ocola… - Physical Review B …, 2013 - APS
The maximum current (critical current) a type-II superconductor can transmit without energy
loss is limited by the motion of the quantized magnetic flux penetrating into a …

Physical properties of weak-coupling quasiperiodic superconductors

N Takemori, R Arita, S Sakai - Physical Review B, 2020 - APS
We numerically study the physical properties of quasiperiodic superconductors with the aim
of understanding superconductivity in quasicrystals. Considering the attractive Hubbard …

Commensurability effects in superconducting Nb films with quasiperiodic pinning arrays

M Kemmler, C Gürlich, A Sterck, H Pöhler, M Neuhaus… - Physical review …, 2006 - APS
We study experimentally the critical depinning current I c versus applied magnetic field B in
Nb thin films which contain 2D arrays of circular antidots placed on the nodes of …

Pinning-Induced Formation of Vortex Clusters and Giant Vortices<? format?> in Mesoscopic Superconducting Disks

IV Grigorieva, W Escoffier, VR Misko, BJ Baelus… - Physical review …, 2007 - APS
Merged, or giant, multiquanta vortices (GVs) are known to appear in very small
superconductors near the superconducting transition due to strong confinement of magnetic …

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 …