网络吸收边 网络释义 1. 吸收边 ...物质粒子吸收能力的主要因素为该物质原子的 K 层吸收边(K absorption edge) 位置 ,即取决于物质的 K 层吸收是否 覆盖射 … wenku.baidu.com|基于 1 个网页
The low energy features of XANES (X-ray absorption near edge structure) in the X-ray K -absorption edge of transition metal systems have long been detected and attempts have been made to explain their origin. Only recently have some theoretical approaches based upon multiple scattering (MS) ...
The fine structure in the titanium x-ray K -edge absorption has been measured in Ti 1 x Nb x O 2 mixed dioxides ( x =0鈥 0.1) with rutile structure in a laboratory-type spectrometer by total electron quantum-yield measurement. The position of the XANES lines is shown to be in good...
The lithium K absorption edge has been studied as a function of momentum transfer in a high-resolution inelastic-electron-scattering experiment and found to exhibit no significant change with momentum transfer up to 1.2 Å-1. This result places severe restrictions on theories which interpret the ...
It has been found that a striking correlation exists between the plasman energy in solids and the chemical shifts of the X-ray K-absorption edges of the transition elements Cr, Cu, Ni, Co, Zn and their compounds. Fairly good agreement between the calculated values of the plasmon energies ...
The shift of the K-absorption edge (ΔEk) was measured in ternary alloys of Ga30Se70-xInx (x = 0, 5, 10, 15, 20) with respect to the binary Ga30Se70 alloy. It was observed that the K-edge of selenium shifted progressively towards the lower energy side as the indium concentratio...
The effect of monochromatic X-ray irradiation on iodine occurred with the X-ray of 33.2 keV which corresponds to the energy just above the K-absorption edge energy of this element. Results of experiments using three different energy levels (33.0, 33.2 and 33.4 keV) demonstrated that spheroid de...
Systematic measurements of Co K-edge spectra have been carried out for a series of cobalt(III) complexes. A counterion effect has been observed in the higher energy region of the XANES. The energy of the 1s-3d transition increased in the following order: dtc - < ox 2- < NO 2- < phen...
absorption energy, this approach allows using the theoretical approximation of 3.9 electrons29for sufficiently accurate anomalous occupancy refinements. In summary, we collected a complete SAD dataset at a wavelength of 3.35 Å, which is close to the K absorption edge (3.44 Å), resulting ...
The X-ray K absorption edges of Ge and Se in glassy Ge22Se78−x Bi x with x =0, 2 and 10 have been studied in bulk as well as in thin-film form. In both cases, we find that, at a low concentration of Bi (x =2), the Se K edge shifts while that of Ge remains unchang...