Electronic structure and chemical bonding of amorphous chromium carbide thin films

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Abstract

The microstructure, electronic structure and chemical bonding of chromium carbide thin films with different carbon contents have been investigated with high-resolution transmission electron microscopy, electron energy loss spectroscopy and soft x-ray absorption–emission spectroscopies. Most of the films can be described as amorphous nanocomposites with non-crystalline CrCx in an amorphous carbon matrix. At high carbon contents, graphene-like structures are formed in the amorphous carbon matrix. At 47 at.% carbon content, randomly oriented nanocrystallites are formed creating a complex microstructure of three components. The soft x-ray absorption–emission study shows additional peak structures exhibiting non-octahedral coordination and bonding.

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Magnuson, M., Andersson, M., Lu, J., Hultman, L., & Jansson, U. (2012). Electronic structure and chemical bonding of amorphous chromium carbide thin films. Journal of Physics Condensed Matter, 24(22). https://doi.org/10.1088/0953-8984/24/22/225004

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