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Cerenkov losses and light guiding modes are present in the very low loss!
Compare with spectra recorded at other thicknesses in this base. Analyst: M. Stoeger-Pollach. Temperature: Room. BEAM/Crystal: 110.
Use in HyperSpy import exspy
spectra = exspy.data.eelsdb(title="Gallium Arsenide", formula="GaAs")
s = next(sp for sp in spectra if sp.original_metadata.json.id == 21665)
s.plot(plot_edges=True) Specimen Formula GaAs Elements Ga, As Source and purity commercial sample Energy range -1.3 – 18.28 eV Step 0.02 eV Keywords Treatment Dark current corrected Yes Gain variation corrected Yes Thickness 2.2 t/λ Acquisition Microscope Tecnai F20 monochromator Gun Thermal type FEG ( monochromator was used ) Beam energy 200 kV Convergence semi-angle 4 mrad Collection semi-angle 0.18 mrad Resolution 0.22 eV Monochromated Yes Detector Parallel: GIF Readouts 1 Reference M. Stoeger-Pollach et al.,Micron 37(2006)396-402
Other links Please cite this spectrum If you use this spectrum, cite the contributor's paper and the EELS Data Base.
Michael Stöger-Pollach. Gallium Arsenide (GaAs). EELS Data Base, spectrum 21665, 2007. https://eelsdb.eu/spectra/gallium-arsenide-2/
M. Stoeger-Pollach et al.,Micron 37(2006)396-402
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 Copy BibTeX @misc{StgerPollach2007eelsdb21665,
author = {Michael Stöger-Pollach},
title = {Gallium Arsenide},
howpublished = {EELS Data Base, spectrum 21665},
year = {2007},
url = {https://eelsdb.eu/spectra/gallium-arsenide-2/}
}
@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}
} Copy