Direct evidence for atomic defects in graphene layers
Atomic-scale defects in graphene layers alter the physical and chemical properties of carbon
nanostructures,. Theoretical predictions have recently shown that energetic particles such as …
nanostructures,. Theoretical predictions have recently shown that energetic particles such as …
Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor
T Haugan, PN Barnes, R Wheeler, F Meisenkothen… - Nature, 2004 - nature.com
Following the discovery of type-II high-temperature superconductors in 1986 (refs,), work
has proceeded to develop these materials for power applications. One of the problems …
has proceeded to develop these materials for power applications. One of the problems …
Freestanding crystalline heterostructure membranes
We report the synthesis of millimeter-sized freestanding single-crystal YB a 2 C u 3 O 7− x
heterostructure membranes with nanoscale thickness. On a SrTi O 3 substrate, a …
heterostructure membranes with nanoscale thickness. On a SrTi O 3 substrate, a …
Flux pinning effects of Y2O3 nanoparticulate dispersions in multilayered YBCO thin films
TA Campbell, TJ Haugan, I Maartense, J Murphy… - Physica C …, 2005 - Elsevier
The flux pinning effects of Y2O3 nanoparticulate inclusions in YBa2Cu3O7− δ (Y123 or
YBCO) thin films using (Y2O3/Y123)× N multilayer structures were studied. The multilayer …
YBCO) thin films using (Y2O3/Y123)× N multilayer structures were studied. The multilayer …
Effect of a Compressive Uniaxial Strain on the Critical Current Density of Grain Boundaries <?format ?>in Superconducting Films
DC van der Laan, TJ Haugan, PN Barnes - Physical review letters, 2009 - APS
The mechanism by which grain boundaries impede current flow in high-temperature
superconductors has resisted explanation for over two decades. We provide evidence that …
superconductors has resisted explanation for over two decades. We provide evidence that …
Minute doping with deleterious rare earths in YBa2Cu3O7− δ films for flux pinning enhancements
PN Barnes, JW Kell, BC Harrison, TJ Haugan… - Applied physics …, 2006 - pubs.aip.org
To enhance the critical current density of Y Ba 2 Cu 3 O 7− δ films, flux pinning centers are
intentionally added to inhibit flux flow in applied magnetic fields. Here we provide an initial …
intentionally added to inhibit flux flow in applied magnetic fields. Here we provide an initial …
The effect of thickness and substrate tilt on the BZO splay and superconducting properties of YBa2Cu3O7− δ films
RLS Emergo, FJ Baca, JZ Wu… - Superconductor …, 2010 - iopscience.iop.org
Highly splayed BaZrO 3 nanorods (BZO-NRs) were generated in YBa 2 Cu 3 O 7− δ (YBCO)
films doped with 2 vol% BZO on 5 vicinal SrTiO 3 (STO) substrates. It was observed that the …
films doped with 2 vol% BZO on 5 vicinal SrTiO 3 (STO) substrates. It was observed that the …
The effect of strain on grains and grain boundaries in YBa2Cu3O7− δ coated conductors
DC van der Laan, TJ Haugan, PN Barnes… - Superconductor …, 2009 - iopscience.iop.org
The role of grains and grain boundaries in producing reversible strain effects on the
transport current critical current density (J c) of YBa 2 Cu 3 O 7− δ (YBCO) coated …
transport current critical current density (J c) of YBa 2 Cu 3 O 7− δ (YBCO) coated …
Study of grain boundary transparency in bicrystal thin films over a wide temperature, field, and field orientation range
P Li, D Abraimov, A Polyanskii, F Kametani… - Physical Review B, 2015 - APS
The residual low-angle grain boundary (GB) network is still the most important current-
limiting mechanism operating in biaxially textured rare-earth barium-copper-oxide (REBCO) …
limiting mechanism operating in biaxially textured rare-earth barium-copper-oxide (REBCO) …
Flux Pinning of Y-Ba-Cu-O Films Doped With BaZrO3 Nanoparticles by Multilayer and Single Target Methods
TJ Haugan, PN Barnes, TA Campbell… - IEEE transactions on …, 2007 - ieeexplore.ieee.org
The superconducting properties of YBa 2 Cu 3 O 7-x (YBCO or 123) thin films doped with
BaZrO 3 (BZO) nanoparticles by multilayer and single-target methods were studied and …
BaZrO 3 (BZO) nanoparticles by multilayer and single-target methods were studied and …