Sr/sub 2/AlTaO/sub 6//YBa/sub 2/Cu/sub 3/O/sub 7/ heterostructures for superconducting device applications

Using pulsed laser deposition, the authors have prepared epitaxial heterostructures of a new insulating perovskite Sr/sub 2/AlTaO/sub 6/ (SAT) and the high-temperature superconductor YBa/sub 2/Cu/sub 3/O/sub 7/ (YBCO) on LaAlO/sub 3/ substrates. X-ray rocking curve and Rutherford backscattering channeling measurements on