Hs. Wang et al., STRUCTURAL AND TRANSPORT-PROPERTIES OF INFINITE-LAYER BA1-XSRXCUO2+DELTA FILMS GROWN BY MBE, Physica. C, Superconductivity, 235, 1994, pp. 977-978
High Quality Ba1-xSrxCuO2+delta (x=0-1) thin films in the infinite lay
er structure were prepared by molecular beam epitaxy on SrTiO3 and NdG
a(O)3 substrates. High conductivity at room temperature and anomalous
resistivity behaviour were found in many samples with x=0.5-0.8, at ab
out 150-200 K. But no superconductivity was confirmed.