Nucleation of superconductivity and vortex matter in superconductor–ferromagnet hybrids

AY Aladyshkin, AV Silhanek, W Gillijns… - Superconductor …, 2009 - iopscience.iop.org
The theoretical and experimental results concerning the thermodynamical and low-
frequency transport properties of hybrid structures, consisting of spatially separated …

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 …

Collective dynamics and defect generation for Wigner crystal ratchets

C Reichhardt, CJO Reichhardt - Physical Review B, 2023 - APS
We consider a two-dimensional Wigner crystal coupled to a quasi-one-dimensional
asymmetric potential under ac or dc driving. As a function of electron density, substrate …

Reversible ratchet effects for vortices in conformal pinning arrays

C Reichhardt, D Ray, CJO Reichhardt - Physical Review B, 2015 - APS
A conformal transformation of a uniform triangular pinning array produces a structure called
a conformal crystal which preserves the sixfold ordering of the original lattice but contains a …

Guided vortex motion in YBaCuO thin films with collective ratchet pinning potentials

A Palau, C Monton, V Rouco, X Obradors, T Puig - Physical Review B …, 2012 - APS
We investigate guided vortex motion in high-temperature YBa 2 Cu 3 O 7 thin films patterned
with an array of asymmetric blind antidots. A preferential vortex motion along spatial …

Nanostructured superconductors with asymmetric pinning potentials: Vortex ratchets

BLT Plourde - IEEE transactions on applied superconductivity, 2009 - ieeexplore.ieee.org
Ratchets formed from spatially asymmetric confining potentials can rectify an oscillatory
driving force and generate directed motion. Such devices can probe the fundamental nature …

Vortex ratchet reversal in an asymmetric washboard pinning potential subject to combined dc and ac stimuli

VA Shklovskij, VV Sosedkin… - Journal of Physics …, 2013 - iopscience.iop.org
The mixed-state resistive response of a superconductor thin film with an asymmetric
washboard pinning potential subject to superimposed dc and ac currents of arbitrary …

Vortex ratchet reversal: Role of interstitial vortices

D Perez de Lara, M Erekhinsky, EM Gonzalez… - Physical Review B …, 2011 - APS
Triangular arrays of Ni nanotriangles embedded in superconducting Nb films exhibit
unexpected dynamical vortex effects. Collective pinning with a vortex-lattice configuration …

Transverse ac-driven and geometric ratchet effects for vortices in conformal crystal pinning arrays

C Reichhardt, CJO Reichhardt - Physical Review B, 2016 - APS
A conformal pinning array is created by taking a conformal transformation of a uniform
hexagonal lattice to create a structure in which the sixfold ordering of the original lattice is …

High-frequency vortex ratchet effect in a superconducting film with a nanoengineered array of asymmetric pinning sites

BB Jin, BY Zhu, R Wördenweber… - Physical Review B …, 2010 - APS
Vortex ratchet effect is investigated experimentally in the frequency range between 0.5 MHz
and 2 GHz. The ratchet potential is provided by an array of about a quarter of a million …