原子物理学
激发态
物理
价(化学)
谱线
电子
离子
吸收光谱法
核心电子
价电子
量子力学
作者
A. Bianconi,J. García,M. Benfatto,A. Marcelli,C. R. Natoli,Manuel F. Ruiz–López
出处
期刊:Physical review
日期:1991-03-15
卷期号:43 (9): 6885-6892
被引量:72
标识
DOI:10.1103/physrevb.43.6885
摘要
Multielectron excitations involving metal deep 1s and shallow 3p core levels have been identified in the x-ray-absorption spectra in the range 50--60 eV above the K edge of transition-metal ions V, Cr, and Mn with tetrahedral coordination geometry. The many-body transitions have been found after subtraction of the dominant one-electron transitions to continuum states giving the x-ray-absorption near-edge structure. The presence of many-body excitations involving valence electrons has been found at \ensuremath{\sim}7 eV above threshold. The energy positions are in good agreement with calculated excitation energies for the many-body configurations, where the two excited electrons are in the unoccupied molecular ${\mathit{t}}_{2}^{\mathrm{*}}$ orbital. Experimental comparison of the intensities of corresponding many-body satellites between the Cr 2p x-ray photoelectron spectrum and Cr K-edge absorption spectrum is reported for ${\mathrm{K}}_{2}$${\mathrm{CrO}}_{4}$.
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