TY - JOUR
T1 - Preparation of epitaxial YbBa2Cu3O7-δ on SrTiO3 single crystal substrates using a solution process
AU - Matsubara, Ichiro
AU - Paranthaman, Mariappan
AU - Chirayil, Thomas G.
AU - Sun, Ellen Y.
AU - Martin, Patrick M.
AU - Kroeger, Donald M.
AU - Verebelyi, Darren T.
AU - Christen, David K.
PY - 1999
Y1 - 1999
N2 - We have prepared YbBa2Cu3O7-δ (Yb-123) epitaxial films on SrTiO3 (100) single crystal substrates by a metal organic decomposition (MOD) method. Precursor solution was prepared by dissolving ytterbium acetylacetonate, barium neodecanoate, and copper (II) 2-ethylhexanoate in a mixture of solvents containing toluene/pyridine/propionic acid. The precursor solutions were spin coated on the substrates and fired at 730-770 °C in 100-ppm oxygen atmospheres followed by 1 atm O2 annealing. X-ray diffraction results from the theta-2theta, phi, and omega scans for the films revealed a (100) cubic texture. The full-width-at-half-maximum values for Yb-123 (103) and Yb-123 (005) were 1.5° (in-plane epitaxy, Δφ) and 0.73° (out-of-plane epitaxy, Δω), respectively. The highest Tc obtained for Yb-123 films was 87.2 K. The measured transport Jc was 6.4×105 A/cm2 at 77 K and self-field.
AB - We have prepared YbBa2Cu3O7-δ (Yb-123) epitaxial films on SrTiO3 (100) single crystal substrates by a metal organic decomposition (MOD) method. Precursor solution was prepared by dissolving ytterbium acetylacetonate, barium neodecanoate, and copper (II) 2-ethylhexanoate in a mixture of solvents containing toluene/pyridine/propionic acid. The precursor solutions were spin coated on the substrates and fired at 730-770 °C in 100-ppm oxygen atmospheres followed by 1 atm O2 annealing. X-ray diffraction results from the theta-2theta, phi, and omega scans for the films revealed a (100) cubic texture. The full-width-at-half-maximum values for Yb-123 (103) and Yb-123 (005) were 1.5° (in-plane epitaxy, Δφ) and 0.73° (out-of-plane epitaxy, Δω), respectively. The highest Tc obtained for Yb-123 films was 87.2 K. The measured transport Jc was 6.4×105 A/cm2 at 77 K and self-field.
UR - http://www.scopus.com/inward/record.url?scp=0032594969&partnerID=8YFLogxK
U2 - 10.1143/jjap.38.l727
DO - 10.1143/jjap.38.l727
M3 - Article
AN - SCOPUS:0032594969
SN - 0021-4922
VL - 38
SP - L727-L730
JO - Japanese Journal of Applied Physics, Part 2: Letters
JF - Japanese Journal of Applied Physics, Part 2: Letters
IS - 7 A
ER -