DocumentCode
840875
Title
Synthesis and characterization of Cu-doped SrTiO3 powders and sol-gel processed buffer layers on IBAD MgO templates
Author
Ayala, Alicia ; Holesinger, Terry G. ; Clem, Paul G. ; Matias, Vladimir ; Jia, Q.X. ; Wang, Haiyan ; Foltyn, Steve R. ; Gibbons, Brady
Author_Institution
Nat. High Magnetic Field Lab., Los Alamos Nat. Lab., NM, USA
Volume
15
Issue
2
fYear
2005
fDate
6/1/2005 12:00:00 AM
Firstpage
2703
Lastpage
2706
Abstract
Copper-doped SrTiO3 (STO) powders were processed by conventional bulk preparation techniques to establish solubility limits of Cu in STO. The maximum solubility of Cu in STO was identified to be ∼1%. Epitaxial Cu-doped SrTiO3 (STO) buffer layers were then prepared by pulsed laser deposition (PLD) and chemical solution deposition (CSD) on ion-beam-assisted deposition (IBAD) magnesium oxide (MgO) flexible metallic textured tapes. Transmission electron microscopy (TEM) analysis of the ∼100 nm thick buffer layer deposited by PLD showed a smooth Cu-doped STO/MgO interface. Films deposited by CSD had an average film thickness of 30 nm and exhibited growth by heterogeneous nucleation with no secondary reaction phases. YBa2Cu3O7-∂ (YBCO) films were deposited onto the Cu-doped STO buffer layers by PLD.
Keywords
buffer layers; chemical analysis; copper; doping; ion beam assisted deposition; magnesium compounds; nucleation; powders; pulsed laser deposition; solubility; strontium compounds; superconducting epitaxial layers; superconducting tapes; titanium compounds; transmission electron microscopy; Cu-doped STO buffer layers; Cu-doped SrTiO3 powders; IBAD MgO templates; SrTiO3-MgO; SrTiO3:Cu; YBa2Cu3O7; chemical solution deposition; conventional bulk preparation techniques; epitaxial Cu-doped SrTiO3 buffer layers; film thickness; heterogeneous nucleation; ion-beam-assisted deposition; magnesium oxide flexible metallic textured tapes; maximum solubility; pulsed laser deposition; secondary reaction phases; sol-gel processed buffer layers; solubility limits; super-conducting tapes; synthesis; thin films; transmission electron microscopy analysis; Buffer layers; Chemical lasers; Laboratories; Lattices; Optical pulses; Powders; Pulsed laser deposition; Superconducting films; US Department of Energy; Yttrium barium copper oxide; Buffer layers; YBCO; chemical solution deposition; superconducting tapes; thin films;
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2005.847787
Filename
1440225
Link To Document