Current-tuned superconductor to insulator transition in granular Sm1.82Ce0.18CuO4-delta superconductor

AUTOR(ES)

Luz, M. S. da, Sandim, M. J. R., Santos, C. A. M. dos, Machado, A. J. S., Jardim, R. F.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2007-09

RESUMO

We have measured transport properties at low temperatures for the granular Sm1.82Ce0.18CuO4-delta samples belonging to the family of electron-doped superconductors. The effect of applied electrical current on the resistive behavior is investigated. The experimental data are analyzed using a modified form of the theory for a field-tuned superconductor-insulator transition in 2D superconductors. The results suggest a possible electrical-current driven superconductor-insulator transition.

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