Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions.

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The incorporation of metallic species (Bi, Sr and Ta) during the growth of layered perovskite SrBi{sub 2}Ta{sub 2}O{sub 9} (SBT) on a-axis oriented YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} (YBCO) conducting oxide substrates has been investigated using in situ low energy mass spectroscopy of recoiled ions (MSRI). This technique is capable of providing monolayer-specific surface information relevant to the growth of single and multi-component thin films and layered heterostructures. The data show a temperature dependence of metallic species incorporation during co-deposition of Sr, Bi and Ta on YBCO surfaces. At high temperatures (400 < T {le} 700 C), negligible incorporation of Bi … continued below

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Dhote, A. M. January 13, 1999.

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The incorporation of metallic species (Bi, Sr and Ta) during the growth of layered perovskite SrBi{sub 2}Ta{sub 2}O{sub 9} (SBT) on a-axis oriented YBa{sub 2}Cu{sub 3}O{sub 7{minus}x} (YBCO) conducting oxide substrates has been investigated using in situ low energy mass spectroscopy of recoiled ions (MSRI). This technique is capable of providing monolayer-specific surface information relevant to the growth of single and multi-component thin films and layered heterostructures. The data show a temperature dependence of metallic species incorporation during co-deposition of Sr, Bi and Ta on YBCO surfaces. At high temperatures (400 < T {le} 700 C), negligible incorporation of Bi is observed as compared to Ta and Sr. At low temperatures ({le} 400 C), there is a substantial incorporation of Bi, Sr and Ta on the surface of YBCO, and the MSRI signal intensities for Sr, Bi and Ta are nearly independent of substrate temperature. According to thermodynamic calculations, the presence of Ba and Y on the YBCO surface inhibit the incorporation of Bi due to competition for oxygen required to establish bonding of metallic species to the surface. This may be the explanation for the observed Bi deficiency in films grown on YBCO surfaces at temperatures >400 C. SBT films grown at temperatures {le} 400 C and annealed in oxygen or air at 800 C exhibit a polycrystalline structure with partial a-axis orientation.

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9 p.

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INIS; OSTI as DE00010882

Medium: P; Size: 9 pages

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  • Materials Research Society 1998 Fall Meeting, Boston, MA (US), 11/30/1998--12/04/1998

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  • Report No.: ANL/CHM/CP-96802
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10882
  • Archival Resource Key: ark:/67531/metadc624076

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Thumbnail image of item number 1 in: 'Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions.'.
Thumbnail image of item number 2 in: 'Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions.'.
Thumbnail image of item number 3 in: 'Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions.'.
Thumbnail image of item number 4 in: 'Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions.'.

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Dhote, A. M. Studies of metallic species incorporation during growth of SrBi{sub 2}Ta{sub 2}O{sub 9} films on YBa{sub 2}Cu{sub 3}O{sub 7-x} substrates using mass spectroscopy of recoiled ions., article, January 13, 1999; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc624076/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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