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

Journal Article · Thu Sep 01 04:00:00 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, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 10 Vol. 84; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

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