Abstract
Chemical solution deposition (CSD) is used to grow high-quality (100)-oriented films of SrTiO3 (STO) on CSD Ba0.2 Ca0.8TiO3(100) (BCT) templates on textured W-doped Ni(100) (Ni:W) tape substrates. The BCT template films form a thin layer or “skin” that bridges its significant porosity. STO films grown at 1000 °C appear optimized for heteroepitaxial orientation, surface coverage, and film smoothness. Both interfaces in the STO(100)/BCT(100)/Ni:W(100) stack demonstrate excellent atomic registry and compositional abruptness. Doping STO with a few atomic percent of Nb reduces oxygen diffusion into the film by an order of magnitude and provides greater protection to the Ni interfacial surface from oxidation during the growth of additional functional oxides requiring relatively higher p(O2) high-temperature processing, such as superconducting YBa2Cu3O7−δ. CSD growth of BCT and STO also planarizes pre-existing grooves in the Ni:W(100) tapes while maintaining a high degree of orientation by forming facets at the interfaces.
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M.P. Siegal, P.G. Clem, J.T. Dawley, R.J. Ong, M.A. Rodriguez, and D.L. Overmyer: All solution-chemistry approach for YBa2Ca3O7−∂-coated conductors. Appl. Phys. Lett. 80, 2710 (2002).
J.M. Phillips, M.P. Siegal, R.B. van Dover, T.H. Tiefel, J.H. Marshall, A.J. Strauss, R.E. Fahey, S. Sengupta, A. Cassanho, and H.P. Jenssen: Comparison of Ba2YCu3O7-d thin films grown on various perovskite substrates by coevaporation. J. Mater. Res. 7, 2650 (1992).
D.K. Chin and T. Van Duzer: Novel all-high Tc epitaxial Josephson junction. Appl. Phys. Lett. 58, 753 (1991).
U. Selvaraj, A.V. Prasadarao, S. Komarneni, and R. Roy: Sol-gel thin films of SrTiO3 from chemically modified alkoxide precursors. Mater. Lett. 12, 311 (1991).
G. Braunstein, G.R. Paz-Pujalt, M.G. Mason, T. Blanton, C.L. Barnes, and D. Margevich: The processes of formation and epitaxial alignment of SrTiO3 thin films prepared by metalloorganic decomposition. J. Appl. Phys. 73, 961 (1993).
M.N. Kamalasanan, N.D. Kumar, and S. Chandra: Structural, optical, and dielectric properties of sol-gel derived SrTiO3 thin films. J. Appl. Phys. 74, 679 (1993).
I. Kobayashi, Y. Wakao, K. Tominaga, and M. Okada: Preparation of SrTiO3 thin films by metalorganic chemical vapor deposition. Jpn. J. Appl. Phys. 33, 4680 (1994).
T. Tomio, H. Miki, H. Tabata, T. Kawai, and S. Kawai: Control of electrical conductivity in laser deposited SrTiO3 thin films with Nb doping. J. Appl. Phys. 76, 5886 (1994).
E. Celik, I.H. Mutlu, and Y.S. Hascicek: Sol-gel processing of buffer layers on Ni tape for YBCO surface coated conductors. IEEE Trans. on Appl. Supercond. 10, 1162 (2000).
S. Sathyamurthy and K. Salama: Chemical solution deposition of highly oriented strontium titanate buffer layers for coated conductors. Supercond. Sci. Technol. 13, L1 (2000).
R.W. Schwartz, P.G. Clem, J.A. Voigt, E.R. Byhoff, M. Van Stry, T.J. Headley, and N.A. Missert: Control of microstructure and orientation in solution-deposited BaTiO3 and SrTiO3 thin films. J. Am. Ceram. Soc. 82, 2359 (1999).
J.T. Dawley, R.J. Ong, and P.G. Clem: Chemical solution deposition of 〈100〉-oriented SrTiO3 buffer layers on Ni substrates. J. Mater. Res. 17, 1678 (2002).
J.T. Dawley and P.G. Clem: Dielectric properties of random and 〈100〉 oriented SrTiO3 and (Ba,Sr)TiO3 thin films fabricated on 〈100〉 nickel tapes. Appl. Phys. Lett. 81, 3028 (2002).
R.J. Ong, J.T. Dawley, and P.G. Clem: Chemical solution deposition of biaxially oriented (Ba,Sr)TiO3 thin films on 〈100〉 Ni. J. Mater. Res. 18, 2310 (2003).
H.P.R. Frederiskse and W.R. Hosler: Hall mobility in SrTiO3. Phys. Rev. 161, 822 (1967).
N.H. Chan and D.M. Smyth: Defect chemistry of donor-doped BaTiO3. J. Am. Ceram. Soc. 67, 285 (1984).
P. Pasierb, S. Komornicki, and M. Rekas: Comparison of the chemical diffusion of undoped and Nb-doped SrTiO3. J. Phys. Chem. Solids 60, 1835 (1999).
C.R. Song and H.I. Yoo: Chemical diffusivity of BaTiO3−∂: defect chemical analysis. Phys. Rev. B 61, 3975 (2000).
S.C. Tidrow, W.D. Wilber, A. Tauber, S.N. Schauer, D.W. Eckart, R.D. Finnegan, and R.L. Pfeffer: Oxygen diffusion through dielectrics: A critical parameter in high critical temperature superconductors multilayer technology. J. Mater. Res. 10, 1622 (1995).
I. Sakaguchi and H. Haneda: Oxygen tracer diffusion in singlecrystal CaTiO3. J. Solid State Chem. 124, 195 (1996).
R.W. Schwartz: Chemical solution deposition of perovskite thin films. Chem. Mater. 9, 2325 (1997).
M.P. Siegal, J.T. Dawley, P.G. Clem, and D.L. Overmyer: Improving chemical solution deposited YBa2Ca3O7−∂ film properties via high heating rates. Physica C 399, 143 (2003).
F.K. Lotgering: Topotactical reactions with ferrimagnetic oxides having hexagonal crystal structures. 1. J. Inorg. Nucl. Chem. 9, 113 (1959).
E.D. Specht, A. Goyal, D.F. Lee, F.A. List, D.M. Kroeger, M. Paranthaman, R.K. Williams, and D.K. Christen: Cubetextured nickel substrates for high-temperature superconductors. Supercond. Sci. Technol. 11, 945 (1998).
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Siegal, M.P., Clem, P.G., Dawley, J.T. et al. Optimizing SrTiO3 films on textured Ni substrates using chemical solution deposition. Journal of Materials Research 20, 910–921 (2005). https://doi.org/10.1557/JMR.2005.0137
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DOI: https://doi.org/10.1557/JMR.2005.0137