Comparative study of elastic electron collisions on the isoelectronic SiN{sub 2}, SiCO, and CSiO radicals

Journal Article · Sun Jul 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.012709· OSTI ID:21011226

Fujimoto, M M; Michelin, S E; Mazon, K T; Santos, A M; Oliveira, H L; Lee, M -T ^[1]

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1. Departamento de Fisica, Universidade Federal do Parana, 81531-990 Curitiba, PR (Brazil)

We report a theoretical study of elastic electron collisions on three isoelectronic free radicals, namely, SiNN, SiCO, and CSiO. More specifically, differential, integral, and momentum-transfer cross sections are calculated and reported in the (1-100) eV energy range. Calculations are performed at the static-exchange-polarization-absorption level of approximation. A combination of the iterative Schwinger variational method and the distorted-wave approximation is used to solve the scattering equations. Our study reveals that the calculated cross sections for the e{sup -}-SiNN and e{sup -}-SiCO collisions are very similar even at incident energies as low as 3 eV. Strong isomeric effects are also observed in the calculated cross sections for e{sup -}-CSiO and e{sup -}-SiCO collisions, particularly at incident energies below 20 eV. It is believed that the position of the silicon atom being at the center or extremity of the molecules may exert important influence on the calculated cross sections.

• OSTI ID: 21011226
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
APPROXIMATIONS
CARBON COMPOUNDS
COMPUTER CALCULATIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTORTED WAVE THEORY
ELASTIC SCATTERING
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
EV RANGE
INTEGRAL CROSS SECTIONS
ITERATIVE METHODS
MOMENTUM TRANSFER
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADICALS
SCHWINGER VARIATIONAL METHOD
SILICON NITRIDES