Interatomic Coulombic decay following Ne 1s Auger decay in NeAr

Journal Article · Sun May 15 00:00:00 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, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.053415; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

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