Enhanced self-field critical current density of nano-composite YBa2Cu3O7 thin films grown by pulsed-laser depositionK. Siraj, J. D. Pedarnig, A. Moser, D. Bäuerle, N. Hari Babu and D. A. CardwellEPL, 82 5 (2008) 57006DOI: https://doi.org/10.1209/0295-5075/82/57006