Charge equilibration times for slow highly charged ions in single layer graphene

30th International Conference on Photonic, Electronic, and Atomic Collisions

Gruber, E.^1 ; Wilhelm, R.A.^2 ; Schwestka, J.^1 ; Smejkal, V.^1 ; Kozubek, R.^3 ; Krasheninnikov, A.V.^2 ; Schleberger, M.^3 ; Facsko, S.^2 ; Aumayr, F.^1

TU Wien, Institute of Applied Physics, EU, Vienna

1040, Austria^1

Helmholtz-Zentrum Dresden-Rossendorf (HZDR), EU, Dresden

01328, Germany^2

Universität Duisburg-Essen, EU, Duisburg

47048, Germany^3

关键词: Charge equilibrations;    Charge exchanges;    Femtoseconds;    Loss measurement;    Single layer;    Slow highly charged ions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/12/112001/pdf
DOI  :  10.1088/1742-6596/875/12/112001

来源: IOP

【 摘 要 】

We report on charge exchange and energy loss measurements for slow highly charged Xeq+(q ≤ 35) ions after transmission through a single layer of freestanding graphene. Surprisingly short charge equilibration times of only a few femtoseconds are found, which cannot be explained within currently available models.