Strongly enhanced flux pinning in BaFe2(As0.66P0.33)2 superconductor films with uniformly dispersed BaZrO3 nanoparticles

三浦正志（成蹊大）； MAIOROV Boris （LANL）；加藤丈晴（JFCC）；下出貴史, 和田圭介, 安達成司, 田辺圭一（SRL）

Abstract:Our BaFe2(As0.66P0.33)2 films also exhibit an increase in both the irreversibility line and critical current density at all magnetic field orientations. These films exhibit nearly isotropic critical current densities in excess of 1.5 MAcm-2 at 15 K and 1 T - 7 times higher than previously reported for BaFe2As2 films. The vortex pinning force in these films reaches ~59 GNm-3 at 5K and 3-9T - substantially higher than that of conventional Nb3Sn wire.