Theoretical studies of low-energy electron-silane scattering with an ab initio description of target response

Journal Article · Fri May 01 04:00:00 EDT 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.45.6323· OSTI ID:7234953

Sun, W; McCurdy, C W ^[1]; Lengsfield, III, B H ^[2]

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1. Department of Chemistry, The Ohio State University, Columbus, Ohio 43210 (United States)
2. Lawrence Livermore National Laboratory, Theoretical Atomic and Molecular Physics Group, L-438, 7000 East Avenue, P.O. Box 808, Livermore, California 94550 (United States)

Theoretical studies of low-energy electron-silane scattering are reported in which target polarization is included by using an {ital ab} {ital initio} optical potential. These calculations employ the complex Kohn scattering method and were undertaken both at the static-exchange level and with target polarization. A polarized virtual-orbital method, which was introduced in our earlier study of electron-methane scattering, was also employed in this study to generate a compact description of the closed channels included in the optical potential. Differential, integral, and momentum-transfer cross sections are reported at incident energies ranging from 0.2 to 20 eV. The computed total cross section shows a Ramsauer-Townsend minimum at 0.3 eV and a broad {ital d}-wave shape resonance at 3.0 eV. Excellent agreement is found between our polarized Kohn results and the recent experimental results of Wan, Moore, and Tossell (J. Chem. Phys. 91, 7340 (1989)).

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7234953
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:9; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY RANGE
EV RANGE
HYDRIDES
HYDROGEN COMPOUNDS
MOLECULE COLLISIONS
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
POLARIZATION
POTENTIALS
RAMSAUER EFFECT
SCATTERING
SILANES
SILICON COMPOUNDS
TARGETS