Spin asymmetries for triple-differential electron-impact ionization of lithium at 54. 4 eV

Journal Article · Mon Nov 23 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.3037· OSTI ID:6997409

Baum, G; Blask, W; Freienstein, P; Frost, L; Hesse, S; Raith, W; Rappolt, P; Streun, M ^[1]

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1. Universitaet Bielefeld, Fakultaet fuer Physik, D-4800 Bielefeld (Germany)

Up to now, all triple-differential cross-section measurements were performed with unpolarized electrons and atoms and, consequently, averaged over direct and exchange scattering. In our crossed-beam experiment, spin-polarized lithium atoms were ionized by spin-polarized electrons of 54.4 eV energy. In co-planar, asymmetric coincidence detection of scattered and ejected electrons, combined with electron-energy analysis, we measured a spin asymmetry which gives new information about the ionization process. Results are compared with recent calculations based on the distorted-wave Born approximation.

• OSTI ID: 6997409
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:21; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ANGULAR MOMENTUM
ASYMMETRY
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
ELECTRON-ATOM COLLISIONS
ELEMENTS
ENERGY
ENERGY RANGE
EV RANGE
EV RANGE 10-100
FUNCTIONS
IONIZATION
LITHIUM
METALS
PARTICLE PROPERTIES
PARTITION FUNCTIONS
SPIN