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Spin exchange in elastic e-O_2 collisions

da Paixão, Fernando J. and Lima, Marco A. P. and McKoy, Vincent (1992) Spin exchange in elastic e-O_2 collisions. Physical Review Letters, 68 (11). pp. 1698-1701. ISSN 0031-9007. doi:10.1103/PhysRevLett.68.1698. https://resolver.caltech.edu/CaltechAUTHORS:20151028-114735891

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Abstract

Recent experiments using polarized electron beams have shown that spin exchange effects for elastic collisions with O_2 and NO are much smaller than for Na atoms. We report calculated spin-flip differential cross sections for elastic collisions of polarized electrons with O_2 in agreement with experiment. In general, we can attribute the large variation of the spin-flip differential cross sections to resonances and interference effects. Such features arising from interference, however, may be washed out in the molecular case due to the average over orientations. Calculations with oriented O_2 molecules show strong exchange effects as for Na.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.68.1698DOIArticle
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.68.1698PublisherArticle
Alternate Title:Spin exchange in elastic e-O2 collisions
Additional Information:© 1992 American Physical Society. (Received 30 October 1991) This work was supported by the Brazilian agency Conselho Nacional de Pesquisa e Desenvolviment Cientifico e Tecnólogico (CNPq) and the National Science Foundation (NSF) through the U.S.-Brazil Scientific Cooperative Program. V.M. also acknowledges support by NSF Grants No. PHY-8901515 and No. PHY-9021933. This research made use of the computing sources of the IBM-3090 of the Unicamp Computer Center.
Funders:
Funding AgencyGrant Number
Conselho Nacional de Pesquisa e Desenvolviment Cientifico e Tecnólogico (CNPq)UNSPECIFIED
NSFPHY-8901515
NSFPHY-9021933
Issue or Number:11
Classification Code:PACS numbers: 34.80.Nz
DOI:10.1103/PhysRevLett.68.1698
Record Number:CaltechAUTHORS:20151028-114735891
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151028-114735891
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61661
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:09 Nov 2015 22:12
Last Modified:10 Nov 2021 22:52

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