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Large nondipole effects in the angular distributions of K-shell photoelectrons from molecular nitrogen.
Hemmers, O; Wang, H; Focke, P; Sellin, I A; Lindle, D W; Arce, J C; Sheehy, J A; Langhoff, P W.
Afiliação
  • Hemmers O; Department of Chemistry, University of Nevada, Las Vegas, Nevada 89154-4003, USA.
Phys Rev Lett ; 87(27 Pt 1): 273003, 2001 Dec 31.
Article em En | MEDLINE | ID: mdl-11800877
ABSTRACT
Measurements of angular distributions of K-shell electrons photoejected from molecular nitrogen are reported which reveal large deviations at relatively low photon energies (Planck's omega < or = 500 eV) from emission patterns anticipated from the dipole approximation to interactions between radiation and matter. A concomitant theoretical analysis incorporating the effects of electromagnetic retardation attributes the observed large nondipole behaviors in N2 to bond-length-dependent terms in the E1 [multiply sign in circle] (E2,M1) photoelectron emission amplitudes which are indicative of a potentially universal nondipole behavior in molecular photoionization.
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Base de dados: MEDLINE Idioma: En Ano de publicação: 2001 Tipo de documento: Article
Buscar no Google
Base de dados: MEDLINE Idioma: En Ano de publicação: 2001 Tipo de documento: Article