Elemental moment variation of bcc FexMn1−x on MgO(001)
| Autor: | Ryan Snow, Yves Idzerda, Harsh Bhatkar, Elke Arenholz |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
X-ray absorption spectroscopy
Materials science Condensed matter physics Absorption spectroscopy Magnetic circular dichroism Alloy Binding energy 02 engineering and technology Electronic structure engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Crystallography Ferromagnetism X-ray magnetic circular dichroism 0103 physical sciences engineering 010306 general physics 0210 nano-technology |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 423:46-50 |
| ISSN: | 0304-8853 |
| Popis: | We report the growth, structural characterization, and electronic structure evolution of epitaxially grown bcc FexMn1−x on MgO(001). It is observed that the 20 nm thick FexMn1−x alloy films remained bcc from 0.65≤x≤1, much beyond the bulk stability range of 0.88≤x≤1. X-ray absorption spectroscopy and X-ray magnetic circular dichroism show that both the Fe and Mn L3 binding energies slightly increase with Mn incorporation and that the elemental moment of Fe in the 20 nm crystalline bcc alloy film remain nearly constant, then shows a dramatic collapse near x~0.84. The Mn MCD intensity is found to be small at all compositions that exhibit ferromagnetism |
| Databáze: | OpenAIRE |
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