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Z oscillations in ion-induced fullerene fragmentation
1KVI Atomic Physics, Rijksuniversiteit Groningen, Zernikelaan 25, 9747AA Groningen, The Netherlands.
Physical Review Letters
|September 16, 2000
Summary
Multiply charged ions cause fragmentation and ionization in C60 fullerenes. Oscillations observed in these processes provide insights into the fullerene's effective electron density.
Area of Science:
- Atomic and Molecular Physics
- Physical Chemistry
- Materials Science
Background:
- C60 fullerene fragmentation and ionization are complex processes.
- These processes are influenced by projectile stopping power and charge exchange.
Purpose of the Study:
- Investigate multiply charged ion-induced fragmentation and ionization of C60.
- Determine the relationship between projectile properties and fullerene response.
- Probe the effective electron density of C60.
Main Methods:
- Studied collision dynamics of C60 with multiply charged ions (Z=2-18).
- Maintained constant projectile velocity (v) and varied charge states (q=2,3).
- Analyzed electronic and nuclear stopping, and charge exchange effects.
Main Results:
- Observed strong oscillations in electronic stopping-related quantities.
- Ionization and fragmentation patterns exhibited oscillatory behavior.
- Correlated oscillation properties with fullerene electron density.
Conclusions:
- Projectile atomic number significantly influences C60 ionization and fragmentation.
- Oscillatory behavior reveals details about electron interactions within C60.
- Provides a method to determine the effective electron density of fullerenes.
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