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Precipitation of a metastable Fe(Ag) solid solution upon annealing of supersaturated Fe(Ag) thin film prepared by pulsed laser deposition

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Abstract

Upon annealing, a single-phase, bcc Fe1-xAgx (x=1.8 or 3.2 at. %) thin film, prepared by pulsed laser deposition, simultaneously undergoes grain growth and precipitation of a bcc Fe(Ag,9-10 at. %) solid solution at the grain boundaries. At a high annealing temperature or after a long annealing time the metastable state transforms to the equilibrium state, pure Fe and pure Ag. A quantitative kinetic growth model has been proposed to explain that this non-equilibrium phenomenon results from surface diffusion.

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  1. Institut für Materialphysik, Universität Göttingen, Tammannstr. 1, 37077, Göttingen, Germany

    F. Liu

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  1. F. Liu
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66.30.Pa; 68.35.Fx; 64.60.My

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Liu, F. Precipitation of a metastable Fe(Ag) solid solution upon annealing of supersaturated Fe(Ag) thin film prepared by pulsed laser deposition. Appl. Phys. A 81, 1095–1098 (2005). https://doi.org/10.1007/s00339-004-2965-7

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  • DOI: https://doi.org/10.1007/s00339-004-2965-7

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