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Mössbauer study of FeAlO layers obtained by ion-beam deposition and ion implanation

Authors
Journal
Thin Solid Films
0040-6090
Publisher
Elsevier
Publication Date
Volume
237
Identifiers
DOI: 10.1016/0040-6090(94)90262-3
Disciplines
  • Chemistry

Abstract

Abstract FeAlO layers were prepared at different temperatures (between 20 °C and 600 °C) by ion implantation and ion-beam sputtering. By the use of conversion electron Mössbauer spectroscopy it was possible to observe the charge states of iron atoms and then to determine the effect of the temperature on the compound formation. In the two fabrication processes small iron particles and FeAl 2O 4 are produced. However, at 20 °C some differences are observed in the chemical state: Fe(IV) and α-Fe are detected in implanted layers only. From 400 °C the main effect of temperature is to favour the formation of dispersed iron particles in alumina with bigger precipitates for ion-implanted samples.

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