Phase effect in the energy loss of hydrogen projectiles in zinc targets

Journal Article · Tue Mar 01 00:00:00 EST 1994 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.49.6470· OSTI ID:142606

Arnau, A ^[1]; Bauer, P; Kastner, F ^[2]; Salin, A ^[3]; Ponce, V H; Fainstein, P D ^[4]; Echenique, P M ^[1]

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1. Departamento de Fisica de Materiales, Universidad del Pais Vasco, Apartado 1072, 20080 San Sebastian (Spain)
2. Institut fuer Experimentalphysik, Johannes Kepler Universitaet, A-4040 Linz (Austria)
3. Laboratoire des Collisions Atomiques, Centre National de la Recherche Scientifique et Universite Bordeaux I, 351 Cours de la Liberation, 33405 Talence Cedex (France)
4. Centro Atomico Bariloche and Instituto Balseiro, 8400 Bariloche (Argentina)

We present an experimental and theoretical study of the phase effect in the energy loss of fast hydrogen beams colliding with gas and solid zinc targets. The experiments show a maximum phase effect of 50% around 50 keV/u, the energy loss per atom in the solid target being smaller than in the gas target. An extensive theoretical study of all the processes contributing to the energy loss in the two phases shows that the experimental findings can be explained primarily by the screening of the projectile field by the valence electrons in the solid.

• OSTI ID: 142606
• Journal Information: Physical Review, B: Condensed Matter, Vol. 49, Issue 10; Other Information: PBD: 1 Mar 1994
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ZINC
ION COLLISIONS
HYDROGEN IONS
STOPPING POWER
GASES
SOLIDS
KEV RANGE
ELECTRON CAPTURE
DISTORTED WAVE THEORY