Dynamic screening and wake effects on electronic excitation in ion-solid and ion-surface collisions

Conference · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5265367

Burgdoerfer, J ^[1]

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1. Tennessee Univ., Knoxville, TN (United States). Dept. of Physics Oak Ridge National Lab., TN (United States)

The collective electronic response in a solid effectively alters ionic and atomic potentials giving rise to dynamic screening and to a wake'' of density fluctuations trailing ions as they propagate through the solid. The presence of dynamic screening modifies electronic excitation processes of projectiles in ion-solid collisions as compared to binary ion-atom collisions. We review recent theoretical and experimental studies directed at the search for and identification of signatures of dynamic screening and wake effects. Examples include the formation of excited projectile bound states under channeling conditions, radiative electron capture, the search for wake riding'' electrons in antiproton-solid collisions, and the neutralization of highly charged ions near surfaces. 42 refs., 7 figs.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5265367
• Report Number(s): CONF-9107155-3; ON: DE91018224
• Resource Relation: Conference: 14. international conference on atomic collisions in solids, Salford (United Kingdom), 29 Jul - 2 Aug 1991
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COULOMB FIELD
SCREENING
SOLIDS
ION COLLISIONS
SURFACES
BOUND STATE
ELECTRON CAPTURE
ELECTRON GAS
EXCITATION
EXCITED STATES
HELIUM
MULTICHARGED IONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
ELECTRIC FIELDS
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FLUIDS
GASES
IONS
NONMETALS
RARE GASES
656003* - Condensed Matter Physics- Interactions between Beams & Condensed Matter- (1987-)