Energy redistribution in I2-(CO2)n collision on silicon surface

Hisato Yasumatsu, Shi N.Ichi Koizumi, Akira Terasaki, Tamotsu Kondow

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Abstract

A process of energy redistribution in the collision of I2- (CO2)n (n = 1-50) with a silicon surface was investigated by measuring the surface-parallel translational energy at the collision energy of 50 eV per I2- and at the two different angles of incidence, 26° and 45°, with respect to the surface normal. The distributions of the surface-parallel translational energy for all the fragment anions produced from a given parent cluster anion are found to be almost identical in shape and are expressed in terms of a shifted Maxwell-Boltzmann distribution with an effective temperature and a center-of mass translational energy. It is concluded that (1) an incoming parent cluster anion and its neighboring surface atoms reach quasi-equilibrium before its fragment anions leave the surface and (2) a smaller number of surface atoms participate in the energy redistribution at a larger angle of incidence.

Original languageEnglish
Pages (from-to)9581-9585
Number of pages5
JournalJournal of Physical Chemistry A
Volume102
Issue number47
Publication statusPublished - Nov 19 1998
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

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    Yasumatsu, H., Koizumi, S. N. I., Terasaki, A., & Kondow, T. (1998). Energy redistribution in I2-(CO2)n collision on silicon surface. Journal of Physical Chemistry A, 102(47), 9581-9585.