Gad Koren

TL;DR: Observations of spontaneous flux generation inside a YBa(2)Cu(3)O(7-delta) loop made of 214 Josephson junctions in series are described, motivated by the Kibble-Zurek scenario of formation of topological defects in condensed matter systems.

TL;DR: In this paper, a detailed study of the tunneling spectra of bicrystal grain-boundary junctions (GBJ's) fabricated from the high-temperature superconductors (HTS) was performed.

TL;DR: In this article, the authors show that the anomalous proximity effect manifests itself in the tunneling spectra measured on the LCMO layer as gaps and zero bias conductance peaks, and they argue that this long-range proximity effect can be accounted for by the formation of spin triplet pairing at the LC MO side of the bilayer due to magnetic inhomogeneity at the interface or at domain walls.

TL;DR: Imaged spontaneously created arrays of vortices (magnetic flux quanta), generated in a superconducting film quenched through its transition temperature at rates around 10(9) K/s, and found unexpected long-range correlations which are not described by any of the existing models.

TL;DR: The data suggest that the enhanced superconductivity is confined to the interface between the layers, and is attributed to a combination of the high pairing scale in the underdoped layer with an enhanced phase stiffness induced by the overdoped film.