학술논문
Ultrafast Nuclear Dynamics in Double-Core Ionized Water Molecules
Document Type
Working Paper
Author
Ismail, Iyas; Inhester, Ludger; Marchenko, Tatiana; Trinter, Florian; Verma, Abhishek; De Fanis, Alberto; Ferte, Anthony; Rivas, Daniel E.; Peng, Dawei; Koulentianos, Dimitris; Kukk, Edwin; Penent, Francis; Doumy, Gilles; Sansone, Giuseppe; Bozek, John D.; Li, Kai; Young, Linda; Ilchen, Markus; Piancastelli, Maria Novella; Meyer, Michael; Velasquez, Nicolas; Travnikova, Oksana; Boll, Rebecca; Guillemin, Renaud; Dorner, Reinhard; Taieb, Richard; Dold, Simon; Carniato, Stephane; Baumann, Thomas M.; Mazza, Tommaso; Ovcharenko, Yevheniy; Puttner, Ralph; Simon, Marc
Source
Subject
Language
Abstract
Double-core-hole (DCH) states in isolated water and heavy water molecules, resulting from the sequential absorption of two x-ray photons, have been investigated. A comparison of the subsequent Auger emission spectra from the two isotopes provides direct evidence of ultrafast nuclear motion during the 1.5 fs lifetime of these DCH states. Our numerical results align well with the experimental data, providing for various DCH states an in-depth study of the dynamics responsible of the observed isotope effect.