WebJun 10, 2024 · Pressure-dependent EXAFS measurements of CdTe using quasi-harmonic analysis yield a linear relation between the bond Grüneisen parameter and the bond length . Assuming that this linear dependence is valid for compression as well as expansion of the bond, the change of the vibrational frequency of the Cd-Te bond can be calculated as a … Weblength distribution. Such an asymmetry has been shown to be a source of artifacts in conventional structural analysis methods by EXAFS (Yevick & Frenkel, 2010). In these cases, the non-Gaussian distribution of bond length needs to be accounted for in order to understand the local environment, which introduces the inaccuracy in quantitative ...
In Situ High-Temperature Reaction-Induced Local Structural …
WebApr 12, 2024 · The EXAFS spectrum of Pt 1 /MnO 2 –R shows a lower intensity of the peak assigned to Pt–O than that of the fresh Pt 1 /MnO 2 ... The formation of lattice hydroxyl increases the bond length of O–Mn (from 1.94 to 2.04 Å), which is a characteristic of the activation of the lattice oxygen. Web"Absolute bond length" is the ability to measure the length of a bond accurately. Because EXAFS models often have a variety of systematic errors, this is often not nearly as good as relative bond ... hub motor trucks
EXAFS spectroscopy: a powerful tool for the study of local vibrational
WebJun 1, 2024 · Bond length behavior for Zn substituted NiO is determined through extended x-ray absorption fine structure (EXAFS) measurements performed at ambient conditions. We report bond length value of 2.11±0.01 Å for Zn-O of rock salt (RS) symmetry, when Zn is doped in RS NiO. WebA significant change in the bond length is observed in the short range crystal structure as an effect of the interfacial strain, and the structure exhibits disorder due to twin defect/stacking fault formation at the homointerfaces of ZB/WZ segments in the polytypic crystalline structure, which is related to the ZB:WZ phase ratio. WebDec 7, 2024 · Utilizing X-ray absorption near-edge spectroscopy (XANES) at Co and N K -edges and extended X-ray absorption fine structure (EXAFS) at Co K -edge, we investigated the structure of CoN in detail. The presence of a strong pre-edge feature at the Co K -edge and the absence of t _2 feature at the N K -edge indicate towards the tetrahedral ... hub motor testing machine