Preferences help
enabled [disable] Abstract
Number of results
2011 | 119 | 2 | 183-185
Article title

Current Distribution in Y-Ba-Cu-O Superconducting Microbridges Containing Π-Shaped Channel for Easy Vortex Motion

Title variants
Languages of publication
A mixed state in dc-biased thin films of II-type superconductors realizes the Abrikosov magnetic vortices/antivortices, which are the result of the current-self magnetic field penetration into the film at temperatures lower than its critical temperature T_{c}. A nucleation of vortices/antivortices at the superconducting film's edges, their motion perpendicular to the direction of biasing current, and the annihilation in the film's center originates from a current dissipation in the superconductor and expresses itself in experiments as a dc voltage. This work reports on the results of simulation of current density in a 50 μm wide, 100 μm long, and 0.3 μm thick YBa_2Cu_3O_{7 - x} microbridges containing Π-shaped 5 μm wide single channel of easy vortex motion fabricated by means of laser-writing technique. Analyzing a two-dimensional-net of resistors and assuming that, due to the Meissner-Ochsenfeld effect, the magnetic flux penetration into superconducting film is nonlinear, we demonstrate that presence of a Π-shaped channel causes a non-homogeneous distribution of current in the microbridge.
Physical description
  • 1. A.A. Abrikosov, Sov. Phys.-JETP 5, 1174 (1957)
  • 2. K. Matsumoto, P. Mele, A. Ichinose, M. Mukaida, Y. Yoshida, S. Horii, R. Kita, IEEE Trans. Appl. Supercond. 19, 3248 (2009)
  • 3. J.-Y. Lin, M. Gurvitch, S.K. Tolpygo, A. Boudillon, S.Y. Hou, J.M. Phylips, Phys. Rev. B 54, R12717 (1996)
  • 4. P. Martinoli, Phys. Rev. B 17, 1175 (1978)
  • 5. Y. Yuzhelevski, G. Jung, C. Camerlingo, M. Russo, M. Ghinovker, B.Ya. Shapiro, Phys. Rev. B 60, 9726 (1999)
  • 6. A. Jukna, I. Barboy, G. Jung, S.S. Barnerjee, Y. Myasoedov, V. Plausinaitiene, A. Abrutis, X. Li, D. Wang, R. Sobolewski, Appl. Phys. Lett. 87, 192504 (2005)
  • 7. A. Jukna, I. Barboy, G. Jung, A. Abrutis, X. Li, D. Wang, R. Sobolewski, J. Appl. Phys. 99, 113902 (2006)
  • 8. A.A. Lykov, Sov. Phys.-Usp. 35, 811 (1992)
  • 9. A. Jukna, I. Barboy, G. Jung, A. Abrutis, X. Li, D. Wang, R. Sobolewski, Acta Phys. Pol. A 113, 959 (2008)
  • 10. E. Zeldov, J.R. Clem, M. McElfresh, M. Darwin, Phys. Rev. B 49, 9802 (1994)
  • 11. E.H. Brandt, M. Indenbom, Phys. Rev. B 48, 12893 (1993)
Document Type
Publication order reference
YADDA identifier
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.