Evidence of a cubic iron sub-lattice in t-CuFe2O4 demonstrated by X-ray Absorption Fine Structure
نویسندگان
چکیده
منابع مشابه
Photon interference x-ray absorption fine structure
We report about a fine structure in x-ray absorption spectra, named photon interference x-ray absorption fine structure (pXAFS). pXAFS is due to the interference of x-rays inside the sample and extends across absorption edges. Using a platinum foil pXAFS was measured in a high precision absorption experiment. Excellent agreement with a theoretical pXAFS simulation is achieved in the energy rang...
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X-ray absorption spectroscopy (XAS) refers to the details of how X-rays are absorbed by an atom at energies near and above the core-level binding energies of that particular atom. The absorption of X-rays on the high energy side of absorption edges does not vary monotonically in condensed matter but has a complicated behavior which extends past the edge up to about ~1 keV. This non-monotonic va...
متن کاملX-ray diffraction and extended x-ray absorption fine-structure characterization of nonspherical crystallographic grains in iron thin films
The characterization of iron thin films grown at different substrate temperatures has been performed by x-ray diffraction (XRD) and extended x-ray absorption fine structure (EXAFS). The film growing of iron at low temperatures provides an excellent system to test the results obtained from both techniques because the crystallographic grains present a variation of size and shape as a function of ...
متن کاملIron (III)-silica interactions in aqueous solution: Insights from X-ray absorption fine structure spectroscopy
The influence of aqueous silica on the hydrolysis of iron(III) nitrate and chloride salts in dilute aqueous solutions (mFe 0.01 mol/kg) was studied at ambient temperature using X-ray absorption fine structure (XAFS) spectroscopy at the Fe K-edge. Results show that in Si-free iron nitrate and chloride solutions at acid pH (pH 2.5), Fe is hexa-coordinated with 6 oxygens of H2Oand/or OH-groups in ...
متن کاملExtended X-ray absorption fine structure in dispersive mode
2014 It has been possible to disperse the X-ray beam provided by the storage ring DCI at LURE in order to perform fast EXAFS experiments (~ 1 s). The weak divergence of the synchrotron beam opens up the possibility of achieving a very good energy resolution. The first data collected with a solid-state detector array (RETICON) show that kinetic studies with a time scale lower than 1/10 s could b...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2018
ISSN: 2045-2322
DOI: 10.1038/s41598-017-19045-8