Laser ablated YBCO thin films — relations between structural and electrical properties

A fully automated pulsed laser deposition system for HTS multilayer devices

“…We have found that to get these properties, essential in multilayer device work, T, appears to have to be sacrificed. This is consistent with previous findings [8].…”

“…The spot dimension has been mentioned above, as has the deposition pressure (as one of the deposition variables). It has been found [8] that to achieve smoother, more uniform films, other desirable properties, such as T,, can be compromised. Therefore, in this experiment, the aim was to optimise the transport properties as far as possible, whilst maintaining uniformity, good morphology and Robustness.…”

Electron backscatter diffraction analysis of gold nanoparticles on Y1Ba2Cu3O7−δ

“…Electron backscatter diffraction analysis of gold nanoparticles on Y 1 Ba 2 Cu 3 O 72d A. Bochmann, 1 C. Katzer, 2 F. Schmidl, 2 It has been shown recently that the incorporation of gold nanoparticles into Y 1 Ba 2 Cu 3 O 7Àd enhances the superconducting properties of this material in a significant way. Previous XRD and TEM investigations suggest different crystallographic relations of the gold nanoparticles with respect to the epitaxial Y 1 Ba 2 Cu 3 O 7Àd .…”

“…1 The pulsed laser deposition of YBCO onto STO substrates is one possible method to produce such hightemperature superconducting thin films with good superconducting properties. 2 The superconducting properties of thin YBCO films on single crystalline STO substrates are essentially influenced by the quality of crystal growth. Besides an optimal stoichiometry, particularly, regarding the oxygen content, a very high crystal quality is necessary, i.e., a minimization of grain boundaries, displacement, etc., especially in the a-b-plane for a widely undisturbed superconducting current transport.…”