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Use of real-time Fourier Transform Infrared Reflectivity as an in situ monitor of YBCO film growth and processing

Gertjan Koster·Jeong-Uk Huh·R. H. Hammond·M. R. Beasley
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Abstract

Fourier Transform Infrared (FTIR) spectroscopy has been utilized during high rate E-beam evaporation/deposition of YBa2Cu3O7 (YBCO). The results demonstrate the great utility of FTIR as an in situ monitor of YBCO deposition and processing. We detect different (amorphous/fine polycrystalline) insulating pre-existing phases to the high Tc superconducting phase which appear to have distinct reflectivity fingerprints dominated by thin film interference effects, as a function of temperature and oxygen pressure. These fingerprints reveal some of the kinetic and thermodynamic pathways during the growth of YBCO.

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Gertjan Koster, Jeong-Uk Huh, R. H. Hammond, M. R. Beasley. 2007-01-18. Use of real-time Fourier Transform Infrared Reflectivity as an in situ monitor of YBCO film growth and processing. https://doi.org/10.1063/1.2753118

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