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Title: | Enhanced self-field critical current density of nano-composite YBa(2)Cu(3)O(7) thin films grown by pulsed-laser deposition |
Authors: | Siraj, K Pedarnig, JD Moser, A Bäuerle, D Hari Babu, N Cardwell, DA |
Issue Date: | 2008 |
Publisher: | IOP Publishing |
Citation: | Europhysics Letters, 82(5): Article no. 57006, 2008 |
Abstract: | Enhanced self-field critical current density Jc of novel, high-temperature superconducting thin films is reported. Layers are deposited on (001) MgO substrates by laser ablation of YBa2Cu3O7−δ(Y-123) ceramics containing Y2Ba4CuMOx (M-2411, M=Ag, Nb, Ru, Zr) nano-particles. The Jc of films depends on the secondary-phase content of the ceramic targets, which was varied between 0 and 15 mol%. Composite layers (2 mol% of Ag-2411 and Nb-2411) exhibit Jc values at 77 K of up to 5.1 MA/cm2, which is 3 to 4 times higher than those observed in films deposited from phase pure Y-123 ceramics. Nb-2411 grows epitaxially in the composite layers and the estimated crystallite size is ~10 nm. |
Description: | This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ EPLA, 2008. |
URI: | http://iopscience.iop.org/0295-5075/82/5/57006/ http://bura.brunel.ac.uk/handle/2438/9000 |
DOI: | http://dx.doi.org/10.1209/0295-5075/82/57006 |
ISSN: | 0295-5075 |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) Dept of Mechanical and Aerospace Engineering Research Papers |
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