Interatomic Coulombic decay following Ne 1s Auger decay in NeAr

Journal Article · Sun May 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.053415· OSTI ID:21546798

Ouchi, T; Sakai, K; Fukuzawa, H; Ueda, K ^[1]; Higuchi, I; Tamenori, Y ^[2]; Demekhin, Ph V; Chiang, Y -C; Stoychev, S D; Kuleff, A I ^[3]; Mazza, T ^[1]; Schoeffler, M ^[4]; Nagaya, K; Yao, M ^[5]; Saito, N ^[6]

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1. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)
2. Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198 (Japan)
3. Theoretische Chemie, Universitaet Heidelberg, D-69120 Heidelberg (Germany)
4. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
5. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
6. National Institute of Advanced Industrial Science and Technology, National Meteorology Institute of Japan, Tsukuba 305-8568 (Japan)

Using momentum-resolved electron-ion multicoincidence spectroscopy, we have investigated interatomic Coulombic decay (ICD) in the heteronuclear NeAr dimer following Ne 1s Auger decay. The measured intensity ratio for the three ICD transitions Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 1}S)-Ar{sup +}(3p{sup -1}), Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 1}D)-Ar{sup +}(3p{sup -1}), and Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 3}P)Ar to Ne{sup 2+}(2p{sup -2} {sup 3}P)-Ar{sup +}(3p{sup -1}) reasonably agree with predictions. The kinetic energy release distribution for the fragmentation to Ne{sup 2+}(2p{sup -2} {sup 1}D)-Ar{sup +}(3p{sup -1}) after the ICD transition from singlet Ne{sup 2+}(2s{sup -1}2p{sup -1} {sup 1}P)Ar state, which is a mirror image of the kinetic energy distribution of the emitted ICD electrons, suggests that the corresponding ICD rate is roughly two times lower than predicted by ab initio calculations.

• OSTI ID: 21546798
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ARGON IONS
AUGER ELECTRON SPECTROSCOPY
CHARGED PARTICLES
COINCIDENCE METHODS
COINCIDENCE SPECTROMETRY
COLLISIONS
COULOMB ENERGY
COUNTING TECHNIQUES
DIMERS
ELECTRON COLLISIONS
ELECTRON SPECTROSCOPY
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY
FLUIDS
FRAGMENTATION
GASES
ION COLLISIONS
IONS
KINETIC ENERGY
NEON
NONMETALS
RARE GASES
SPECTROSCOPY