Direct Observation of Double-Core-Hole Shake-Up States in Photoemission

Autor: Thierry Moreno, Denis Céolin, Ralph Püttner, Renaud Guillemin, Jean-Pascal Rueff, R. K. Kushawaha, Maria Novella Piancastelli, Marc Simon, Gildas Goldsztejn, Dennis W. Lindle, Tatiana Marchenko, Loic Journel
Rok vydání: 2015
Předmět:
Zdroj: Physical Review Letters. 114
ISSN: 1079-7114
0031-9007
DOI: 10.1103/physrevlett.114.093001
Popis: Direct measurements of Ar^{+} 1s^{-1}2p^{-1}nl double-core-hole shake-up states are reported using conventional single-channel photoemission, offering a new and relatively easy means to study such species. The high-quality results yield accurate energies and lifetimes of the double-core-hole states. Their photoemission spectrum also can be likened to 1s absorption of an exotic argon ion with a 2p core vacancy, providing new information about the spectroscopy of both this unusual ionic state as well as the neutral atom.
Databáze: OpenAIRE