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Author Nakamura, O.; Chan, I.; Guimpel, J.; Schuller, I.
Title (up) New buffer layer for high?temperature superconducting ceramics on sapphire: LaBa2Cu3Oy/Ag bilayers Type Journal Article
Year 1991 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 59 Issue 10 Pages 1245
Keywords Superconducting Films; Fabrication; High?Tc Superconductors; Lanthanum Oxides; Barium Oxides; Copper Oxides; Silver; Superconducting Junctions; Superconductivity; Dysprosium Oxides; Sputtering; Sapphire; Crystal Structure; Crystal Growth; Very High Temperature
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Call Number BT @ jguimpel @ Serial 611
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Author Fernandes, A.; Chan, I.; Guimpel, J.; Nakamura, O.; Lederman, D.; Schuller, I.
Title (up) Scaling of critical currents in high-temperature superconducting superlattices and thin films Type Journal Article
Year 1992 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 61 Issue 26 Pages 3181
Keywords High?Tc Superconductors; Thin Films; Superlattices; Critical Current; Temperature Dependence; Scaling Laws; Anisotropy
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Call Number BT @ jguimpel @ Serial 608
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Author Chan, I.N.; Vier, D.C.; Nakamura, O.; Hasen, J.; Guimpel, J.; Schultz, S.; Schuller, I.K.
Title (up) Thickness dependence of the superconducting transition temperature of YBCO Type Journal Article
Year 1993 Publication Physics Letters A Abbreviated Journal
Volume 175 Issue 3-4 Pages 241-245
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Abstract We have performed detailed structural and superconducting studies of YBCO single layers, YBCO/PrBCO/YBCO tri-layers, and YBCO/PrBCO superlattices. The results for single layers indicate that a nominally one unit cell thick YBCO film sandwiched between PrBCO layers is not superconducting. However, a superlattice with nominally one unit cell thick YBCO layers has a measurable superconducting temperature onset (Tco). These apparently contradictory results are reconciled by experiments on YBCO/PrBCO/YBCO tri-layers which, due to coupling across the PrBCO insulating layer, exhibit superconductivity for PrBCO thicknesses below 200 Ã…. Structural studies show that the length scale of the superconductive coupling is much larger than the length scale of the step disorder and interdiffusion present in the film.
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ISSN 0375-9601 ISBN Medium
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Call Number BT @ jguimpel @ Serial 623
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