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Mössbauer spectroscopy of Co2Mn1-xFexAl

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Jung, V., Balke, B., Fecher, G. H., Ksenofontov, V., & Felser, C. (2008). Mössbauer spectroscopy of Co2Mn1-xFexAl. Hyperfine Interactions, 184(1-3), 15-21. doi:10.1007/s10751-008-9764-z.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-9723-7
Abstract
(57)Fe Mossbauer spectroscopic studies of Co(2)Mn(1-xCex)Fe(x) Al based Heusler compounds are presented. The cubic structure type was found for all samples of the series in XRD studies. However, a mixture of the cubic B2 and L2(1) structure types are not unambiguously distinguished by XRD. The present study gives evidence for a mixture of the L2(1) structure with additions of a large amount of B2 like disorder. The isomer shifts and hyperfine magnetic fields on (57)Fe atoms are compared with theoretical values from CPA calculations.