Unambiguous observation of F-atom core-hole localization in CF 4 through body-frame photoelectron angular distributions
Unambiguous observation of F-atom core-hole localization in CF 4 through body-frame photoelectron angular distributions
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通过体架光电子角分布明确观察 CF 4 中的 F 原子核孔定位
DOI：
10.1103/physreva.95.011401
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发表时间：
2017
影响因子：
2.9
通讯作者：
I. Ben-Itz
中科院分区：
文献类型：
--
作者：
C. W. McCurdy;T. N. Rescigno;C. S. Trevisan;R. R. Lucchese;B. Gaire;A. Menssen;M. S. Schöffler;A. Gatton;J. Neff;P. M. Stammer;J. Rist;S. Eckart;B. Berry;T. Severt;J. Sartor;A. Moradmand;T. Jahnke;A. L. Landers;J. B. Williams;I. Ben-Itz
光电子的角分布显示出分子在壳层内发生对称性破缺，在四个等效氟原子中的一个上产生核-空穴空位.观察符合解剖离子俄歇衰变后的光电子被示出选择的解离路径的核心孔几乎完全定位在该原子上。在反冲原子框架内对光电子角分布的测量和从头计算相结合，阐明了F（）原子核激发的类Ne价结构的物理基础。
A dramatic symmetry breaking in-shell photoionization of themolecule in which a core-hole vacancy is created in one of four equivalent fluorine atoms is displayed in the molecular frame angular distribution of the photoelectrons. Observing the photoejected electron in coincidence with anatomic ion after Auger decay is shown to select the dissociation path where the core hole was localized almost exclusively on that atom. A combination of measurements andab initiocalculations of the photoelectron angular distribution in the frame of the recoilingandatoms elucidates the underlying physics that derives from the Ne-like valence structure of the F() core-excited atom.