Nuclear dynamics in the core-excited state of aqueous ammonia probed by resonant inelastic soft x-ray scattering

Journal Article · Thu Sep 01 00:00:00 EDT 2011 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.84.104202· OSTI ID:21596862

Weinhardt, L; Weigand, M; Fuchs, O ^[1]; Baer, M ^[2]; Blum, M ^[3]; Denlinger, J D; Yang, W ^[4]; Umbach, E ^[5]; Heske, C ^[3]

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1. Universitaet Wuerzburg, Experimentelle Physik VII, Am Hubland, D-97074 Wuerzburg (Germany)
2. Helmholtz Zentrum Berlin fuer Materialien und Energie GmbH, Solar Energy Research, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany. (Germany)
3. Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003 (United States)
4. Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (United States)
5. Karlsruhe Institute of Technology, D-76021 Karlsruhe (Germany)

The electronic structure of aqueous NH{sub 3} and ND{sub 3} has been investigated using resonant inelastic soft x-ray scattering. Spectral features of different processes involving nuclear dynamics in the core-excited state can be identified. When exciting into the lowest core-excited state, we find a strong isotope effect and clear evidence for ultrafast proton dynamics. Furthermore, a strong vibronic coupling is observed and, in the case of aqueous NH{sub 3}, a vibrational fine structure can be resolved.

• OSTI ID: 21596862
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 84, Issue 10; Other Information: DOI: 10.1103/PhysRevB.84.104202; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMMONIA
COUPLING
DEUTERIDES
DEUTERIUM COMPOUNDS
ELECTRONIC STRUCTURE
EXCITED STATES
FINE STRUCTURE
HYDROGEN COMPOUNDS
INELASTIC SCATTERING
ISOTOPE EFFECTS
PROTONS
SCATTERING
SOFT X RADIATION
BARYONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
HADRONS
HYDRIDES
IONIZING RADIATIONS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUCLEONS
RADIATIONS
X RADIATION