One of the open issues concerning iron-based superconductors is whether the s±wave
model is able to account for the overall effects of impurity scattering, including the low rate of …

We report on the introduction of columnar defects in Ba 1− x K x Fe 2 As 2 and BaFe 2 (As
1− x P x) 2 single crystals via 1.2 GeV Pb irradiation. Scanning transmission electron …

High-energy heavy-ion irradiation is known to produce effective vortex pinning centers in the
high-T c cuprate superconductors, as amorphous columnar tracks. However, while the …

The magnetic flux distribution arising from a high-T c superconductor is detected and
visualized using polarized x rays. Therefore, we introduce a sensor layer, namely, an …

The influence of dendritic magnetic-flux penetration on the microwave response of
superconducting magnesium diboride (MgB 2) films is investigated by a coplanar resonator …

The effects of uniform and non-uniform columnar defect implantation on the vortex-induced
nonlinear behaviour of YBCO films at microwave frequencies are investigated by a coplanar …

Here we present a study of the pinning properties of high-quality single crystals of Ba (Fe 1−
x Co x) 2 As 2 (x= 0.07) by means of the quantitative magneto-optical imaging (MOI). This …

When materials are patterned in three dimensions, there exist opportunities to tailor and
create functionalities associated with an increase in complexity, the breaking of symmetries …

The critical state of a thin superconducting strip in an oblique applied magnetic field H a is
analyzed without any restrictions on the dependence of the critical current density jc on the …

Microscale modulations of the crystal structure in a continuous superconductor turn out to be
effective for the spatial focusing of the energy dissipation induced by unpinned vortices …