Abstract
A fullyc-axis oriented thin film of YBa2(Cu0.98 57Fe0.02)3O6.8 prepared by planar dcsputtering has been investigated by means of Mössbauer spectroscopy. Room temperature57Fe conversion electron Mössbauer spectra taken at different angles between the γ-ray direction and the normal (=c-axis) of the film show four subspectra: A (quadrupole splitting ΔE Q≈1.9 mm/s), B (ΔE Q≈1 mm/s), C (ΔE Q≈0.5 m/s) and D (ΔE Q≈1.6 mm/s). For subspectra A, B and C, we found the same hyperfine parameters as already published on other samples. The hyperfine parameters for subspectrum D are determined for the first time using a fully oriented sample. For D, we found the asymmetry parameterη ≥0.6 andV zz (the main component of the electric field gradient) lying in the a-b-plane.
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Amon, J., Dengler, J., Ritter, G. et al. A study of a fullyc-axis oriented dc-sputtered thin film of YBa2(Cu0.98 57Fe0.02)3O6.8 by means of CEMS, XRD and SEM. Hyperfine Interact 93, 1641–1646 (1994). https://doi.org/10.1007/BF02072921
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DOI: https://doi.org/10.1007/BF02072921