M. Pekala et al., TRANSPORT STUDY OF BA-DEFICIENT THIN-FILM Y123 SUPERCONDUCTORS ENRICHED WITH NA, Superconductor science and technology, 8(8), 1995, pp. 660-666
Nominal Y0.3Ba0.6Na0.1CuO3-delta thin films were prepared with small g
rains having an orientation of the c axis perpendicular to the MgO sub
strate. The electrical resistivity and the thermoelectric power in the
absence and in the presence of a magnetic field are reported. The mag
netic field dependence of the irreversibility line is discussed. The r
ole of the field for disentangling intragrain and intergrain effects i
n both coefficients is emphasized.