Method of linearizing the 3d L3/L2 white line ratio as a function of magnetic moment
| Autor: | Abu Fasihuddin, J. I. Budnick, Douglas M. Pease, M. Daniel |
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| Rok vydání: | 2001 |
| Předmět: |
Series (mathematics)
Absorption spectroscopy Magnetic moment Chemistry Electron energy loss spectroscopy Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Computational physics Moment (mathematics) Matrix (mathematics) Linearization Deconvolution Atomic physics Instrumentation |
| Zdroj: | Ultramicroscopy. 88:1-16 |
| ISSN: | 0304-3991 |
| Popis: | We have developed a parameterization method which linearizes the relationship between local magnetic moment and the 3d L3/L2 “white line” ratio as observed in electron energy loss spectroscopy or X-ray near edge absorption spectroscopy. We first establish that the parameterization linearizes an existing theoretical result for ratio versus moment. We then test our method on data sets for which a white line ratio has been previously published by other authors, who have studied a series of compounds using a consistent deconvolution procedure. Finally, we apply our linearization method to the observed ratios of a series of 3d transition metals, and to the Cr L edges for a AuxCr(1−x) alloy. In addition we obtain, for the first time, experimental results on the Au L3 and L2 edge white lines of this alloy system. These results are consistent with a model in which the large local moment in this system is not limited to Cr dopants, but extends into the gold matrix. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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