Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films

作者：Civale L^*; Maiorov B; Serquis A; Willis JO; Coulter JY; Wang H; Jia QX; Arendt PN; MacManus Driscoll JL; Maley MP; Foltyn SR

来源：Applied Physics Letters, 2004, 84(12): 2121-2123.

DOI：10.1063/1.1655707

We compare the angular-dependent critical current density (J(c)) in YBa2Cu3O7 films deposited on MgO templates grown by ion-beam-assisted deposition (IBAD), and on single-crystal substrates. We identify three angular regimes in which pinning is dominated by different types of correlated and uncorrelated defects. Those regimes are present in all cases, but their extension and characteristics are sample dependent, reflecting differences in texture and defect density. The more defective nature of the films on IBAD turns into an

• 出版日期2004-3-22