Spatial Quantum Beats in Vibrational Resonant Inelastic Soft X-Ray Scattering at Dissociating States in Oxygen

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.153004· OSTI ID:21550300

Pietzsch, A; Kennedy, B ^[1]; Sun, Y -P; Gel'mukhanov, F ^[2]; Hennies, F ^[1]; Rinkevicius, Z ^[2]; Karlsson, H O ^[3]; Schmitt, T; Strocov, V N ^[4]; Andersson, J; Rubensson, J -E ^[5]; Schlappa, J ^[6]; Foehlisch, A ^[6]

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1. MAX-lab, Lund University, Box 118, S-221 00 Lund (Sweden)
2. Department of Theoretical Chemistry and Biology, School of Biotechnology, Royal Institute of Technology, S-106 91 Stockholm (Sweden)
3. Department of Physical and Analytical Chemistry, Uppsala University, Box 518, S-751 20 Uppsala (Sweden)
4. Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)
5. Department of Physics and Astronomy, Uppsala University, Box 516, S-751 20 Uppsala (Sweden)
6. Institute for Methods and Instrumentation in Synchrotron Radiation Research G-I2, Helmholtz-Zentrum Berlin fuer Materialien und Energie, Albert-Einstein-Strasse 15, 12489 Berlin (Germany)

Resonant inelastic soft x-ray scattering (RIXS) spectra excited at the 1{sigma}{sub g}{yields}3{sigma}{sub u} resonance in gas-phase O{sub 2} show excitations due to the nuclear degrees of freedom with up to 35 well-resolved discrete vibronic states and a continuum due to the kinetic energy distribution of the separated atoms. The RIXS profile demonstrates spatial quantum beats caused by two interfering wave packets with different momenta as the atoms separate. Thomson scattering strongly affects both the spectral profile and the scattering anisotropy.

• OSTI ID: 21550300
• Journal Information: Physical Review Letters, Vol. 106, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.106.153004; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANISOTROPY
ATOMS
DEGREES OF FREEDOM
DISTRIBUTION
EXCITATION
KINETIC ENERGY
OXYGEN
RESONANCE
SOFT X RADIATION
SPECTRA
THOMSON SCATTERING
WAVE PACKETS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
ENERGY-LEVEL TRANSITIONS
INELASTIC SCATTERING
IONIZING RADIATIONS
NONMETALS
RADIATIONS
SCATTERING
X RADIATION