Effects of vortex localization at columnar defects on the mixed-state transport properties of Tl2Ba2CaCu2O8 films

R. C. Budhani; W. L. Holstein; M. Suenaga

doi:10.1117/12.182682

10 August 1994 Effects of vortex localization at columnar defects on the mixed-state transport properties of Tl₂Ba₂CaCu₂O₈ films

R. C. Budhani, W. L. Holstein, M. Suenaga

Author Affiliations +

Proceedings Volume 2158, Oxide Superconductor Physics and Nano-Engineering; (1994) https://doi.org/10.1117/12.182682
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

The effects of vortex localization at columnar defects on the linear and non-linear dissipation in Tl₂Ba₂CaCu₂O₈ films are studied. The confinement of vortices into columnar defects leads to a minimum in the angular dependence of linear resistivity when the external field is brought into alignment with the defects. This observation provides compelling evidence for non-zero line tension of vortices in this highly anisotropic cuprate. The electric field vs current density isotherms, and the temperature dependence of linear resistivity, both, indicate a Bose glass type of phase transition in this system.

Citation Download Citation

R. C. Budhani, W. L. Holstein, and M. Suenaga "Effects of vortex localization at columnar defects on the mixed-state transport properties of Tl₂Ba₂CaCu₂O₈ films", Proc. SPIE 2158, Oxide Superconductor Physics and Nano-Engineering, (10 August 1994); https://doi.org/10.1117/12.182682

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