Magnetic properties of iron oxides produced by bacterial oxidation of Fe2+ under acid conditions
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Iron oxides synthesized under acid conditions in a bioreactor using the bacteriumThiobacillus ferrooxidans or formed in nature under similar conditions resemble relatively “well”-crystallized ferrihydrites. Mössbauer spectra, however, show up significant differences between these and ferrihydrites, indicating sulfate to play a major role in determining the properties of the bacterial samples.
KeywordsOxide Iron Sulfate Thin Film Magnetic Property
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