DocumentCode
82587
Title
Thick High 
YBCO Films on ABAD-YSZ Templates
Author
Pahlke, Patrick ; Hering, Michael ; Sieger, Max ; Lao, Mayraluna ; Eisterer, Michael ; Usoskin, Alexander ; Stromer, Jan ; Holzapfel, Bernhard ; Schultz, Ludwig ; Huhne, Ruben
Author_Institution
IFW Dresden, Dresden, Germany
Volume
25
Issue
3
fYear
2015
fDate
Jun-15
Firstpage
1
Lastpage
4
Abstract
In this paper, we report on high critical current density (Jc) YBCO films deposited by pulsed laser deposition on CeO2 buffered ABAD-YSZ/stainless steel templates with a thickness ranging from 0.7 μm up to 4.2 μm. In the thinnest sample, a transition temperature (Tc) of 90 K and a critical current density of 2.6 MA/cm2 was reached at 77 K. With increasing thickness, Tc drops as well as Jc. The total critical current (Ic) increases strongly up to a thickness of 2.8 μm, reaching a value of almost 600 A/cm-width. In thicker films, no further increase in Ic was observed. A higher surface roughness and misoriented YBCO grains were found in layer thicknesses above 2.8 μm and are assumed to be the main reason for the limitation of the current transport.
Keywords
barium compounds; critical current density (superconductivity); high-temperature superconductors; ion beam assisted deposition; pulsed laser deposition; superconducting thin films; superconducting transition temperature; surface roughness; yttrium compounds; ABAD-YSZ templates; YBCO; critical current density; current transport; high Jc YBCO films; pulsed laser deposition; size 0.7 mum to 4.2 mum; surface roughness; transition temperature; Conductors; Critical current density (superconductivity); Films; Integrated circuits; Pulsed laser deposition; Temperature measurement; Yttrium barium copper oxide; Coated conductors; PLD; YBCO; high-temperature superconductors; thick films;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2014.2378533
Filename
6979217
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