DENSITY OF STATE EFFECTS IN AG L(3)M(4,5),M(4,5) THRESHOLD AUGER-SPECTRA
DENSITY OF STATE EFFECTS IN AG L(3)M(4,5),M(4,5) THRESHOLD AUGER-SPECTRA
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DOI：
10.1103/physrevlett.74.42
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发表时间：
1995-01-02
影响因子：
8.6
通讯作者：
MATERLIK, G
中科院分区：
文献类型：
--
作者：
DRUBE, W;TREUSCH, R;MATERLIK, G
研究了在L3阈值区，从固态Ag中发射的L3 M4，5 M4，5俄歇电子的能量分布与激发光子能量的关系。G41俄歇谱线不仅表现出喇曼型能量色散和减少的芯空穴寿命展宽，而且其线形也被明显调制。对于亚阈值激发，额外的结构出现在高度不对称的发射轮廓。这被解释为是由于在中间偶极跃迁探测空d态的局部密度。一个简单的数值模型定性地再现了所测得的电子分布的总体特征。
The energy distribution of L 3 M 4, 5 M 4, 5 Auger electrons emitted from solid Ag is studied as a function of the exciting photon energy in the L 3 threshold region. The G 4 1 Auger line not only exhibits a Raman-type energy dispersion and a reduced core hole lifetime broadening, but its line shape is also markedly modulated. For subthreshold excitation, additional structure appears within the highly asymmetric emission profile. This is interpreted as being due to the local density of empty d states probed in the intermediate dipole transitions. A simple numerical model qualitatively reproduces the gross features of the measured electron distribution.