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Alumina alpha

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- Background subtracted. - Note the absence of the peak at 92 eV (non-dipole transitions due to channeling conditions observed only along <0001>, cf paper quoted).- Calibration could not be accurate. Analyst: Stefan Nufer. Temperature: Room. BEAM/Crystal: <1-100>.

Use in HyperSpy
import exspy

spectra = exspy.data.eelsdb(title="Alumina alpha", formula="Al2O3 (alpha)")
s = next(sp for sp in spectra if sp.original_metadata.json.id == 21575)
s.plot(plot_edges=True)

Specimen

Formula
Al2O3 (α)
Elements
Al, O
Edges
Al L2,3
Energy range
71.7 – 152.8 eV
Step
0.1 eV

Keywords

  • imported from old site

Treatment

Dark current corrected
Yes
Gain variation corrected
Yes
Thickness
0.22 t/λ

Acquisition

Microscope
VG HB-501
Gun
Cold FEG
Beam energy
100 kV
Convergence semi-angle
6.5 mrad
Collection semi-angle
6.5 mrad
Resolution
0.7 eV
Mode
STEM
Detector
Parallel: 666 Gatan
Probe size
1 nm²
Integration time
10 s
Readouts
1

Reference

Nufer, Gemming, Koestlmeier, Ruehle, Ultramicroscopy, 88, 253-263, 2001

Other links

Please cite this spectrum

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

PD Dr. Peter A. van Aken. Alumina alpha (Al2O3 (alpha)). EELS Data Base, spectrum 21575, 2005. https://eelsdb.eu/spectra/alumina-alpha-4/

Nufer, Gemming, Koestlmeier, Ruehle, Ultramicroscopy, 88, 253-263, 2001

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{Aken2005eelsdb21575,
  author = {PD Dr. Peter A. van Aken},
  title = {Alumina alpha},
  howpublished = {EELS Data Base, spectrum 21575},
  year = {2005},
  url = {https://eelsdb.eu/spectra/alumina-alpha-4/}
}

@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}
}