Abstract The Fe-based superconductors (FBSs) are an important new class of
superconducting materials. As with any new superconductor with a high transition …

We show that despite the low anisotropy, strong vortex pinning, and high irreversibility field
H irr close to the upper critical field H c 2 of Ba (Fe 1− x Co x) 2 As 2⁠, the critical current …

Large-scale applications of high-transition-temperature (high-T c) superconductors, such as
their use in superconducting cables, are impeded by the fact that polycrystalline materials …

Practical high-temperature superconductors must be textured to minimize the reduction of
the critical current density J gb at misoriented grain boundaries. Partial substitution of Ca for …

Abstract BaZrO 3 (BZO) one-dimensional artificial pinning centers (1D-APCs) aligned along
the c-axis of the YBa 2 Cu 3 O 7 (YBCO) have been adopted to enhance the magnetic vortex …

Three recent examples of the applicaton of off-axis electron holography to the
characterization of magnetic and electrostatic fields in nanoscale materials and devices …

Bi 2 Sr 2 Ca 1 Cu 2 O x (Bi-2212) is the only high-temperature superconductor (HTS)
available as a round wire with high critical current density J c, which makes it a very …

It has been well established that the critical current density J c across grain boundaries
(GBs) in high-temperature superconductors decreases exponentially with misorientation …

The scanning transmission electron microscope1 (STEM) is one of the most useful tools in
many areas of atomic-scale materials science and nanocharacterization. A STEM has the …

A tilt angle dependence of vortex structure was studied at low-angle grain boundaries
(LAGBs) in Y Ba 2 Cu 3 O 7− x films. The 2° tilt LAGB did not degrade J c of the film in a self …