Deconvolution of lifetime broadening at rare-earth LIII edges compared to resonant inelastic x-ray scattering measurements.
Deconvolution of lifetime broadening at rare-earth LIII edges compared to resonant inelastic x-ray scattering measurements.
复制标题
与共振非弹性 X 射线散射测量相比，稀土 LIII 边缘寿命展宽的反卷积。
DOI：
10.1103/physrevb.54.14877
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Sivia
中科院分区：
文献类型：
--
作者：
Loeffen;Pettifer;Müllender;van Veenendaal MA;Röhler;Sivia
通过对高质量数据的去卷积，部分消除了某些稀土元素{首都L}{亚Ⅲ}边X射线吸收谱的寿命展宽。明确解决了偶极共振的配位场分裂问题。将暴露的前缘结构与原子多重态计算进行了比较，得到了2{tal p}{r_row}4{tal f}四极激发态。从而确定四极/偶极振荡器强度的比率。将Ho(NO{sub3}){sub3}的去卷积XAS数据与非弹性x射线散射测量进行了比较，实验表明非弹性x射线散射测量不能再现窄XAS。{版权所有}{1996年美国物理学会。}
The lifetime broadening of some rare-earth {ital L}{sub III}-edge x-ray absorption spectra (XAS) is partially removed by deconvolving high quality data. The ligand field splitting of dipolar resonances is clearly resolved. Exposed pre-edge structure is compared to atomic multiplet calculations of the 2{ital p}{r_arrow}4{ital f} quadrupolar excitations. Ratios are thereby determined for the quadrupolar/dipolar oscillator strengths. Deconvolved XAS data of Ho(NO{sub 3}){sub 3} are compared to inelastic x-ray scattering measurements showing experimentally that the latter cannot reproduce a narrowed XAS. {copyright} {ital 1996 The American Physical Society.}