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

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2582

Lastpage

2585

Abstract

We present measurements of the angular dependent critical current (J_c) of DyBa₂Cu₃O₇ on single crystal SrTiO₃ and YBa₂Cu₃O₇ on tilted Ion Beam Assisted Deposition MgO substrate. These experiments demonstrate that J_c 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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.847659

Filename

1440194