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Figure 8
Normalized X-ray absorption near Fe K-edge as a function of time. Small black arrows indicate time of the following events: 1, heating laser turned on; 2, sample temperature reaches ∼1200 K and a phase transition from α-Fe to γ-Fe starts; 3, phase transition is finished, only a pure γ-Fe phase is observed; 4, first traces of iron oxide appear in spectra; 5, the oxidation is complete and the sample is fully converted to Fe2O3 hematite.

Journal logoJOURNAL OF
ISSN: 1600-5775
Volume 21| Part 6| November 2014| Pages 1240-1246
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