Semiclassical formalism in ion-surface capture at high energies

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.50.3202· OSTI ID:7005121

Gravielle, M S; Miraglia, J E ^[1]

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1. Instituto de Astronomia y Fisica del Espacio, Consejo Nacional de Investigaciones Cientificas y Tecnicas, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires (Argentina)

The electron-capture process from the free-electron gas of a solid by heavy ions at grazing collisions is studied using the first Born approximation. A proper semiclassical expression is derived from the formal quantum treatment by introducing a classical trajectory to describe the movement of the projectile. When our finding is compared with the scattering amplitude obtained with the usual semiclassical formalism, three important differences are found: first, the generally used specular reflection of the projectile does not hold; second, a new term associated with a sort of projectile translation factor comes out; and third, a multiplicative coefficient ranging between 1/2 and 1 arises from the formalism depending on the trajectory.

• OSTI ID: 7005121
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 50:4; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

665300* -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORN APPROXIMATION
CAPTURE
CHARGED PARTICLES
COLLISIONS
ELECTRON CAPTURE
ELECTRON GAS
FLUIDS
GASES
HEAVY IONS
INCIDENCE ANGLE
ION COLLISIONS
IONS
SEMICLASSICAL APPROXIMATION
SURFACES
TRAJECTORIES