Energy loss of swiftH2+andH3+molecules in gold: Vicinage effects

Autor: Samir de Morais Shubeita, Johnny Ferraz Dias, Isabel Abril, C. D. Denton, Pedro Luis Grande, Rafael Garcia-Molina
Rok vydání: 2011
Předmět:
Zdroj: Physical Review B. 83
ISSN: 1550-235X
1098-0121
DOI: 10.1103/physrevb.83.245423
Popis: molecules. The results show small enhancements (about 5% and 15% for H + and H + molecules, respectively) of the stopping ratios. The values obtained by the simulation code SEICS indicate small vicinage effects as well and are in satisfactory agreement with the experimental data. Moreover, the same simulations carried out for carbon foils yield relatively higher stopping ratios. The differences between the vicinage effects obtained for C and Au are interpreted in terms of different excitation spectra of each material. Finally, our results obtained for Au are in clear disagreement with those reported in the seminal work of Brandt, Ratkowski, and Ritchie [Phys. Rev. Lett. 33, 1325 (1974)].
Databáze: OpenAIRE