Abstract
Superconducting YBa 2Cu 3O 7−x thin films have been grown in situ on (100)-oriented single crystals of LaAlO 3, SrTiO 3, MgO and Y 2O 3-stabilized ZrO 2 by laser ablation. The epitaxial growth was controlled by the oxygen partial pressure ( P o 2 ), the substrate temperature T s and the laser fluence E during the deposition. Thin films deposited under the optimum conditions ( P o 2 = 25 Pa; T s = 750° C E = 2 J cm −2 show a critical temperature close to 91 K and a transition width less than 1 K regardless of the substrate used. X-ray diffraction analysis shows that the films are highly c axis oriented with a very low mosaic spread. Preliminary measurements performed at 17 K show that the critical current density reaches values over 2 × 10 7 A cm −2 for a sample grown on LaAlO 3 under proper deposition conditions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
