37 citations · 177 across the 7 of their papers we have counts for
7 papers
Dynamics of single vortices in grain boundaries: I-V characteristics on the femto-volt scale
B. Kalisky, J. R. Kirtley, E. A. Nowadnick +7
We employed a scanning Hall probe microscope to detect the hopping of individual vortices between pinning sites along grain boundaries in YBCO thin films in the presence of an appl…
Suppression of vortex channeling in meandered YBa2Cu3O7-d grain boundaries
J. H. Durrell, D. M. Feldmann, C. Cantoni
We report on the in-plane magnetic field (H) dependence of the critical current density (Jc) in meandered and planar single grain boundaries (GBs) isolated in YBa2Cu3O7-d (YBCO) co…
Enhanced current flow through meandering and tilted grain boundaries in YBCO films
Rafael B. Dinner, Kathryn A. Moler, D. Matthew Feldmann +1
Grain boundaries (GBs) have been shown to limit critical current density, Jc, in YBa2Cu3O7 (YBCO) coated conductors. Here we use transport measurements and scanning Hall probe micr…
Imaging ac losses in superconducting films via scanning Hall probe microscopy
Rafael B. Dinner, Kathryn A. Moler, D. Matthew Feldmann +1
Various local probes have been applied to understanding current flow through superconducting films, which are often surprisingly inhomogeneous. Here we show that magnetic imaging a…
Through-thickness superconducting and normal-state transport properties revealed by thinning of thick film ex situ YBa2Cu3O7-x coated conductors
D. M. Feldmann, D. C. Larbalestier, R. Feenstra +4
A rapid decrease in the critical current density (Jc) of YBa2Cu3O7-x (YBCO) films with increasing film thickness has been observed for multiple YBCO growth processes. While such be…
Resolution of two-dimensional Currents in Superconductors from a two-dimensional magnetic field measurement by the method of regularization
D. M. Feldmann
The problem of reconstructing a two-dimensional (2D) current distribution in a superconductor from a 2D magnetic field measurement is recognized as a first-kind integral equation a…