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RESEARCH PRODUCT

Structural properties of the quaternary Heusler compound Co2 Cr1−x Fex Al

Sérgio R. TeixeiraClaudia FelserGerhard H. FecherS. WurmehlMaria Do Carmo Martins AlvesJonder Morais

subject

Auger electron spectroscopyMaterials scienceExtended X-ray absorption fine structureMechanical EngineeringMetals and AlloysAnalytical chemistryCrystal structureengineering.materialHeusler compoundCrystallographyX-ray photoelectron spectroscopyMechanics of MaterialsX-ray crystallographyMaterials ChemistryengineeringEmission spectrumAbsorption (electromagnetic radiation)

description

Abstract The structural and chemical properties of the quaternary Heusler compound Co2 Cr1−x Fex Al were investigated comparing powder and bulk samples. The long 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.

yearjournalcountryeditionlanguage
2006-10-01Journal of Alloys and Compounds
https://doi.org/10.1016/j.jallcom.2005.12.108