Title :
Influence of tilted geometries on critical current in superconducting thin films
Author :
Maiorov, B. ; Gibbons, B.J. ; Kreiskott, S. ; Matias, V. ; Jia, Q.X. ; Holesinger, T.G. ; Civale, L.
Author_Institution :
Supercond. Technol. Center, Los Alamos Nat. Lab., NM, USA
fDate :
6/1/2005 12:00:00 AM
Abstract :
We present measurements of the angular dependent critical current (Jc) of DyBa2Cu3O7 on single crystal SrTiO3 and YBa2Cu3O7 on tilted Ion Beam Assisted Deposition MgO substrate. These experiments demonstrate that Jc angular dependences of tilted defects are a useful tool to detect misalignments between the internal and applied magnetic fields. The results show that, in order to understand vortex pinning in thin anisotropic samples below certain value of magnetic field, this misalignment must be taken into account.
Keywords :
barium compounds; critical current density (superconductivity); dysprosium compounds; flux pinning; high-temperature superconductors; ion beam assisted deposition; superconducting thin films; DyBa2Cu3O7; MgO; MgO substrate; SrTiO3; YBa2Cu3O7; angular dependence; applied magnetic field; critical current; internal magnetic field; ion beam assisted deposition; misalignment detection; superconducting thin film; thin anisotropic sample; tilted defect; tilted geometry; vortex pinning; Anisotropic magnetoresistance; Critical current; Geometry; Ion beams; Magnetic fields; Magnetic films; Pulsed laser deposition; Superconducting films; Superconducting thin films; Yttrium barium copper oxide; Critical current; rare earth compounds; superconducting films; superconducting tapes;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2005.847659
