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SELECTIVE FRAGMENTATION OF VALENCE- AND CORE-ELECTRON-EXCITEDCD4andSF6MOLECULES

Author

Listed:
  • M. STANKIEWICZ

    (Instytut Fizyki im. Mariana Smoluchowskiego, Uniwersytet Jagiellonski, ul. Reymonta 4, 30-059 Krakńw, Poland)

  • P. WINIARCZYK

    (Instytut Fizyki im. Mariana Smoluchowskiego, Uniwersytet Jagiellonski, ul. Reymonta 4, 30-059 Krakńw, Poland)

  • J. RIUS I RIU

    (SCFAB, Section of Atomic and Molecular Physics (KTH), SE-10691 Stockholm, Sweden)

  • J. ÁLVAREZ

    (SCFAB, Section of Atomic and Molecular Physics (KTH), SE-10691 Stockholm, Sweden)

  • P. ERMAN

    (SCFAB, Section of Atomic and Molecular Physics (KTH), SE-10691 Stockholm, Sweden)

  • A. KARAWAJCZYK

    (SCFAB, Section of Atomic and Molecular Physics (KTH), SE-10691 Stockholm, Sweden)

  • E. RACHLEW

    (SCFAB, Section of Atomic and Molecular Physics (KTH), SE-10691 Stockholm, Sweden)

  • E. KUKK

    (Department of Physical Sciences, University of Oulu, FIN-90014 Oulu, Finland)

  • M. HUTTULA

    (Department of Physical Sciences, University of Oulu, FIN-90014 Oulu, Finland)

  • P. HATHERLY

    (J. J. Thomson Physical Lab., The University of Reading, Whiteknights, PO Box 220, Reading, RG6 6AF, UK)

Abstract

Electron–ion coincidence measurements with energy-resolved electrons are a powerful tool in studies of molecular fragmentation processes, since fragmentation from a specific doorway state can be monitored while the remaining reactions are discriminated. Presently, we have applied this technique in measurements of coincidence spectra of theCD4andSF6molecules after valence and core electron excitation. The newly constructed energy-resolved electron–ion coincidence station developed for this project has been used. Our results onCD4are the first demonstration of a correlation between vibrations and molecular dissociation observed in this molecule. TheSF6spectra reveal strong selectivity in dissociation following distinct electronic states of the molecule. This selectivity reflects the bonding properties of the potential surfaces involved in the studied processes. The obtained results exemplify the potential of the new multicoincidence station used in this work.

Suggested Citation

  • M. Stankiewicz & P. Winiarczyk & J. Rius I Riu & J. Álvarez & P. Erman & A. Karawajczyk & E. Rachlew & E. Kukk & M. Huttula & P. Hatherly, 2002. "SELECTIVE FRAGMENTATION OF VALENCE- AND CORE-ELECTRON-EXCITEDCD4andSF6MOLECULES," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 9(01), pages 117-123.
    • Handle: RePEc:wsi:srlxxx:v:09:y:2002:i:01:n:s0218625x02002105
    DOI: 10.1142/S0218625X02002105
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    Keywords

    ; 33.80.-b; 39.90.+d; 82.37.-j;
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