Ultrafast Core-Hole Induced Dynamics in Water probed by X-ray Emission Spectroscopy

Journal Article · Tue Nov 09 00:00:00 EST 2004 · Physical Review Letters

OSTI ID:843152

Odelius, Michael; Ogasawara, Hirohito; Nordlund, Dennis; Fuchs, Oliver; Weinhardt, Lothar; Maier, Florian; Umbach, Eberhard; Heske, Clemens; Zubavichus, Yan; Grunze, Michael; Denlinger, Jonathan D; Pettersson, Lars G.M.; Nilsson, Anders

The isotope effect and excitation-energy dependence have been measured in the oxygen K-edge x-ray emission spectrum (XES). The use of XES to monitor core decay processes provides information about molecular dynamics (MD) on an ultrafast time scale through the O1s lifetime of a few femtoseconds. Different nuclear masses give rise to differences in the dynamics and the observed isotope effect in XES is direct evidence of the importance of such processes. MD simulations show that even the excitation-energy dependence in the XES is mainly related to differences in core-excited-state dynamics.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Office of Basic Energy Sciences; National Science Foundation Grants CHE-0089251 and CHE-0431425; Foundation for Stategic Research, Swedish Research Council, Bundesministerium fur Bildung und Forschung Projects 05KS1WW1/6 and 05KS1VHA/3
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 843152
• Report Number(s): LBNL-58448; PRLTAO; R&D Project: A580SS; TRN: US0504152
• Journal Information: Physical Review Letters, Vol. 94; Other Information: Journal Publication Date: 2005; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DECAY
EMISSION SPECTROSCOPY
ISOTOPE EFFECTS
LIFETIME
MONITORS
OXYGEN
WATER
advanced light source als