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Iron Oxide Magnetite

Core loss Fe3O4 · Alex Gloter · added 2008-02-08 · Beam energy and angles known · History

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The maximum L3 line of magnetite has been measured 0.4 eV lower in energy with respect to the L3 line maximum of hematite. Both samples deposited onto the same grid. We use the hematite as a Fe3+ reference, maximum of the L3 line set at 710.5 eV to match with some XAS previously reported work. see Kuiper et al., Phys. Rev. Lett. 70, 1549 - 1552 (1993) Energy resolution improved by Richardson-Lucy deconvolution Analyst: A. Gloter, A. Chen. Temperature: Room.

Use in HyperSpy
import exspy

spectra = exspy.data.eelsdb(title="Iron Oxide Magnetite", formula="Fe3O4")
s = next(sp for sp in spectra if sp.original_metadata.json.id == 21709)
s.plot(plot_edges=True)

Specimen

Formula
Fe3O4
Elements
Fe, O
Edges
Fe L2,3
Source and purity
Natural sample (from magnetotactic bacteria)
Energy range
683.75 – 729.25 eV
Step
0.05 eV

Keywords

  • imported from old site

Treatment

Dark current corrected
No
Gain variation corrected
No

Acquisition

Microscope
STEM-VG
Gun
Cold FEG
Beam energy
100 kV
Convergence semi-angle
7.5 mrad
Collection semi-angle
24 mrad
Monochromated
No
Detector
Parallel: 666 Gatan

Other links

Please cite this spectrum

If you use this spectrum, cite the contributor and the EELS Data Base.

Alex Gloter. Iron Oxide Magnetite (Fe3O4). EELS Data Base, spectrum 21709, 2008. https://eelsdb.eu/spectra/iron-oxide-magnetite/

Philip Ewels, Thierry Sikora, Virginie Serin, Chris P. Ewels and Luc Lajaunie. “A Complete Overhaul of the Electron Energy-Loss Spectroscopy and X-Ray Absorption Spectroscopy Database: eelsdb.eu.” Microscopy and Microanalysis 22, 717–724 (2016). doi:10.1017/S1431927616000179
BibTeX
@misc{Gloter2008eelsdb21709,
  author = {Alex Gloter},
  title = {Iron Oxide Magnetite},
  howpublished = {EELS Data Base, spectrum 21709},
  year = {2008},
  url = {https://eelsdb.eu/spectra/iron-oxide-magnetite/}
}

@article{ewels2016eelsdb,
  author = {Ewels, Philip and Sikora, Thierry and Serin, Virginie and Ewels, Chris P. and Lajaunie, Luc},
  title = {A Complete Overhaul of the Electron Energy-Loss Spectroscopy and X-Ray Absorption Spectroscopy Database: eelsdb.eu},
  journal = {Microscopy and Microanalysis},
  volume = {22},
  pages = {717--724},
  year = {2016},
  doi = {10.1017/S1431927616000179}
}
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