Examinando por Autor "De La Cruz, F."

Mostrando 1 - 1 de 1
  • Miniatura
    ÍtemAcceso Abierto
    Metallic to variable-range-hopping transition controlled by oxygen content in La-Sr-Cu-O
    (American Physical Society, 1988-08-01) Osquiguil, E.J.; Civale, L.; Decca, R.; De La Cruz, F.; Gerencia Física. Departamento Materia Condensada. División Bajas Temperaturas
    We have performed electrical resistivity measurements on the superconductor La1.8Sr0.2CuO4−δ over a wide range of temperatures and oxygen concentration. The results provide experimental evidence for a transition from a metallic behavior at high temperatures to a variable-range hopping regime at low temperatures. The transition is controlled by the oxygen content. Correlation between both regimes is also shown.