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Laser deposition of thin superconducting films from a nanocrystalline YBa2Cu3O7-delta target
Tekijät: Huhtinen H, Paturi P, Lahderanta E, Laiho R
Kustantaja: IOP PUBLISHING LTD
Julkaisuvuosi: 1999
Lehti:: Superconductor Science and Technology
Tietokannassa oleva lehden nimi: SUPERCONDUCTOR SCIENCE & TECHNOLOGY
Lehden akronyymi: SUPERCOND SCI TECH
Vuosikerta: 12
Numero: 2
Aloitussivu: 81
Lopetussivu: 86
Sivujen määrä: 6
ISSN: 0953-2048
DOI: https://doi.org/10.1088/0953-2048/12/2/005
Tiivistelmä
A target prepared from YBa2Cu3O7-delta nanopowder is used for pulsed laser deposition of thin films on SrTiO3 substrates. Investigations by atomic force microscopy show that in this way it is possible to prepare smooth films which are free from droplets. In optimized growth conditions the critical current density J(c) approximate to 8 x 10(6) A cm(2) in zero held at 77 K, superconducting transition temperature T-c approximate to 90 K and transition width of Delta T-c = 2 K are obtained.
A target prepared from YBa2Cu3O7-delta nanopowder is used for pulsed laser deposition of thin films on SrTiO3 substrates. Investigations by atomic force microscopy show that in this way it is possible to prepare smooth films which are free from droplets. In optimized growth conditions the critical current density J(c) approximate to 8 x 10(6) A cm(2) in zero held at 77 K, superconducting transition temperature T-c approximate to 90 K and transition width of Delta T-c = 2 K are obtained.
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