TY - CPAPER
KW - Pulsed laser deposition
KW - Yttrium compounds
KW - Copper oxides
KW - Heterostructures
KW - High temperature superconductors
KW - Transport properties
KW - Yttrium barium copper oxides
KW - Laser Beams–Applications
AU - Arun Inam
AU - Charles Rogers
AU - Ramamoorthy Ramesh
AU - K.E Myers
AU - J Barner
AU - B.J Wilkens
AU - K.S Harshavardhan
AU - M Rajeswari
AU - S Bersey
AU - L Gertner
AU - Shahab Etemad
AU - Tim Sands
AU - J.M Tarascon
AU - Rajendra Singh
AU - Martin Nisenoff
AU - Davor Pavuna
AB - <p>We have investigated the influence of interface effects and CuO2 plane orientation on transport properties of high temperature superconducting (HTS) thin films in YBa2 Cu3O7-PrBa2Cu3O7 (YBCO-PrBCO) heterostructures grown by pulsed laser deposition. Two unit cell (≈ 24 angstroms) thick YBCO films, isolated in c-axis oriented PrBCO/YBCO/PrBCO trilayers, are found to superconduct at temperatures above 20 K, while films thicker than 6 unit cells display bulk superconducting properties. An epitaxial process has also been developed to grow YBCO films and YBCO/PrBCO heterostructures with the CuO2 planes oriented normal to the film surface. These a-axis oriented films display transport properties comparable to the best c-axis oriented films and, moreover, are better suited to the fabrication of sandwich-type Josephson junction devices by virtue of the longer superconductive coherence length normal to the direction of the YBCO-PrBCO barrier interface.</p>
BT - Proceedings of the SPIE - The International Society for Optical Engineering
LA - eng
N1 - <p>cited By 0</p>
N2 - <p>We have investigated the influence of interface effects and CuO2 plane orientation on transport properties of high temperature superconducting (HTS) thin films in YBa2 Cu3O7-PrBa2Cu3O7 (YBCO-PrBCO) heterostructures grown by pulsed laser deposition. Two unit cell (≈ 24 angstroms) thick YBCO films, isolated in c-axis oriented PrBCO/YBCO/PrBCO trilayers, are found to superconduct at temperatures above 20 K, while films thicker than 6 unit cells display bulk superconducting properties. An epitaxial process has also been developed to grow YBCO films and YBCO/PrBCO heterostructures with the CuO2 planes oriented normal to the film surface. These a-axis oriented films display transport properties comparable to the best c-axis oriented films and, moreover, are better suited to the fabrication of sandwich-type Josephson junction devices by virtue of the longer superconductive coherence length normal to the direction of the YBCO-PrBCO barrier interface.</p>
PB - Publ by Int Soc for Optical Engineering, Bellingham, WA, United States
PY - 1992
SN - 0819407283/0277786X
SP - 101
EP - 107
T2 - Proceedings of the SPIE - The International Society for Optical Engineering
T3 - SPIE - The International Society for Optical Engineering
TI - Artificially layered YBa2Cu3O7-PrBa2Cu3O7 heterostructures; growth, properties, and device applications (Invited Paper)
VL - 1597
ER -