Ultrafast Charge Transfer Processes Accompanying KLL Auger Decay in Aqueous KCl Solution

作     者：D. Céolin N. V. Kryzhevoi Ch. Nicolas W. Pokapanich S. Choksakulporn P. Songsiriritthigul T. Saisopa Y. Rattanachai Y. Utsumi J. Palaudoux G. Öhrwall J.-P. Rueff 

作者机构：Synchrotron SOLEIL l’Orme des Merisiers Saint-Aubin F-91192 Gif-sur-Yvette Cedex France Theoretical Chemistry Institute of Physical Chemistry Heidelberg University Im Neuenheimer Feld 229 69120 Heidelberg Germany Faculty of Science Nakhon Phanom University Nakhon Phanom 48000 Thailand NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials and School of Physics Suranaree University of Technology Nakhon Ratchasima 30000 Thailand Department of Applied Physics Faculty of Sciences and Liberal Arts Rajamangala University of Technology Isan Nakhon Ratchasima 30000 Thailand CNRS UMR 7614 Laboratoire de Chimie Physique-Matière et Rayonnement F-75005 Paris France Sorbonne Universités UPMC Université Paris 06 UMR 7614 Laboratoire de Chimie Physique-Matière et Rayonnement F-75005 Paris France MAX IV Laboratory Lund University P.O. Box 118 SE-22100 Lund Sweden 

出 版 物：《Physical Review Letters》 (物理评论快报)

年 卷 期：2017年第119卷第26期

页      面：263003-263003页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Deutsche Forschungsgemeinschaft  DFG 

主　　题：Autoionization & Auger processes Electronic excitation & ionization 

摘      要：X-ray photoelectron and KLL Auger spectra were measured for the K+ and Cl− ions in aqueous KCl solution. While the XPS spectra of these ions have similar structures, both exhibiting only weak satellites near the main line, the Auger spectra differ dramatically. Contrary to the chloride case, a very strong extra peak was found in the Auger spectrum of K+ at the low kinetic energy side of the D1 state. Using the equivalent core model and ab initio calculations this spectral feature was assigned to electron transfer processes from solvent water molecules to the solvated cation. The observed charge transfer processes are suggested to play an important role in charge redistribution following single and multiple core-hole creation in atoms and molecules placed into environment.