2014年6月16日 · La L1 and L3-edge X-ray absorption near-edge structure (XANES) of various La oxides were classified according to the local configuration of La.

XAS（synchrotron X-ray absorption spectroscopy）可以提供有关配位环境和被探测原子化学状态等有价值的信息，并且硬X射线具有研究原位电化学反应动态过程的能力，有利于建立更精确的构效关系，成为当下催化剂机理研究的不二之选！ 本文简要讲述了XAS的基本概念和原理，各种XAS分析方法的功能，并为使用XAS进行结构鉴定提供一种通用策略。 2. 基本原理和方法. 2.1 简单理论基础. XAS（synchrotron X-ray absorption spectroscopy）以X射线光子能量作为变 …

2021年6月11日 · Here, we report the development of a database of computed L-edge XANES using the multiple scattering theory-based FEFF9 code. The initial release of the database contains more than 140,000 L-edge...

X-ray absorption spectroscopy (XAS) is a robust and valuable characterization technique for accurate identifi-cations of atomic local environments1, oxidation...

1991年8月1日 · We report on the effect of La and Cr on the structural, thermal and crystallization behavior of diopside-based glasses and on the processing, microstructure and properties of the sintered glass-ceramics (GCs).

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Ni L-edge, La M4-edge and Nd M5-edge x-ray absorption spectra (XAS) a, XAS of LaNiO3 and LaNiO2 across the Ni L3,2-edge before subtraction of the La M4 absorption peak. The XAS of NiO powder...

This tutorial explains how to calculate the X-ray absorption spectrum (XAS) of a given compound in particular the edge and near edge region. The respective spectroscopy is often called XANES (X-ray absorption near edge structure) or NEXAFS (near edge X-ray absorption fine structure). This tutorial requires VASP 6.0 or higher.

2021年6月11日 · The L-edge XANES is widely used in the characterization of transition metal compounds. The data is available through the Materials Project XAS app and addresses a critical need for L-edge XANES spectra among the research community. The journal article is …

2021年3月1日 · X-ray Absorption Spectroscopy (XAS), namely X-ray Absorption Near Edge Structure (XANES) and Extended X-ray Absorption Fine Structure (EXAFS) offers a unique access to the electronic structure and short range order of materials respectively.