Angular dependence of the irreversible magnetization of YBa2Cu3O7 superconducting thin films
B. P. Thrane, C. Schlenker, J. Dumas, R. Buder
DOI 10.1103/PhysRevB.54.15518 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
YBa2Cu3O7 superconducting thin films have been studied by magnetization measurements in oblique fields up to 0.8 T both at low temperature and at temperatures close to Tc. Both components of magnetization parallel and perpendicular to the applied field could be measured with two pairs of crossed detection coils. In all cases the magnetization is found to be perpendicular to the film plane. This is due to the self-field effects related to the thin-film geometry which force the critical currents to circulate along the film plane. At low temperature the properties are found to depend only on the component of the applied magnetic field perpendicular to this plane, as expected in the situation where demagnetizing field effects are dominant. However, at temperatures close to Tc the critical currents and therefore the pinning are found to increase when the applied field approaches the film plane. This is attributed to the effect of intrinsic pinning which may be related to the kink structure of the vortices in oblique fields.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure not reported | unknown |
Similar papers
Response of fractal penetration of magnetic flux to disorder landscape in superconducting films
similarity 0.96Zuxin Ye et al.
Source status unknown — claims are unverified
Measurement of the Far-Infrared Magnetoconductivity Tensor of Superconducting YBa2Cu3O7−δ Thin Films
similarity 0.96H.-T. S. Lihn et al.
Source status unknown — claims are unverified
Self-heating effects on the transition to a highly dissipative state at high current density in superconducting YBa2Cu3O7−δ thin films
similarity 0.95J. Viña et al.
Source status unknown — claims are unverified
Structure of ultrathin heteroepitaxial superconducting YBa2Cu3O7−x films
similarity 0.95C. M. Schlepütz et al.
Source status unknown — claims are unverified
Analytical approach to the thermal instability of superconducting films under high current densities
similarity 0.94Jesús Maza et al.
Source status unknown — claims are unverified
Vortex dynamics in YBa2Cu3O7−δ superconducting films: Experimental evidence for an instability in the vortex system at high current densities
similarity 0.94Z. L. Xiao & P. Ziemann
Source status unknown — claims are unverified