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Structural properties of the quaternary Heusler compound Co2Cr1-xFexAl

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Wurmehl, S., Morais, J., Alves, M. d. C. M., Teixeira, S. R., Fecher, G. H., & Felser, C. (2006). Structural properties of the quaternary Heusler compound Co2Cr1-xFexAl. Journal of Alloys and Compounds, 423(1-2), 159-162. doi:10.1016/j.jallcom.2005.12.108.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-6770-B
Abstract
The structural and chemical properties of the quaternary Heusler compound Co2Cr1-xFexAl were investigated comparing powder and bulk samples. The Iona range order was determined by means of X-ray diffraction, while the site specific (short range) order was proved by the extended X-ray absorption fine structure method (EXAFS). The chemical composition was analysed by means of X-ray photo emission spectroscopy (XPS) combined with Auger electron spectroscopy (AES) depth profiling. The results from these methods are compared to get a detailed idea about the differences between surface and bulk properties and appearance of disorder in such alloys. (c) 2006 Elsevier B.V. All rights reserved.