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Titolo: Stochastic treatment of charge states for ion stopping in solids
Autore: Miskovic, ZL; Davison, SG; Goodman, FO; Liu, WK;
- Indirizzi:
- Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada Univ WaterlooWaterloo ON Canada N2L 3G1 th, Waterloo, ON N2L 3G1, Canada Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 ys, Waterloo, ON N2L 3G1, Canada Univ Waterloo, Guelph Waterloo Program Grad Work Phys, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 ys, Waterloo, ON N2L 3G1, Canada
- Titolo Testata:
- PHYSICAL REVIEW B-CONDENSED MATTER
fascicolo: 21,
volume: 60,
anno: 1999,
pagine: 14478 - 14480
- SICI:
- 0163-1829(199912)60:21<14478:STOCSF>2.0.ZU;2-#
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- HEAVY-IONS; SWIFT IONS; EXCHANGE;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- --discip_EC--
- Citazioni:
- 13
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Miskovic, ZL Univ Waterloo, Dept Appl Math, Waterloo, ON N2L 3G1, Canada Univ Waterloo Waterloo ON Canada N2L 3G1 ON N2L 3G1, Canada
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- Citazione:
- Z.L. Miskovic et al., "Stochastic treatment of charge states for ion stopping in solids", PHYS REV B, 60(21), 1999, pp. 14478-14480
Abstract
We describe the evolution of the charge state of a fast atomic projectile under the equilibrium conditions as a stationary continuous-time Markov process with discrete values. The time scale of the charge-state autocorrelation function is governed by the rate of charge-changing collisions in the target. Describing the collective electron excitations in the target by a linear-response formalism, we show that the finite response time of the electron gas makes the mean stopping power and the mean self-energy of the projectile sensitive to the charge-state correlation effects. We evaluate these effects for light projectiles by using a two-level model for the Markov process and simple models for the dielectric function of the electron gas. [S0163-1829(99)04146-6].
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/05/13 alle ore 12:10:48