On the additivity of scattering phases in collisions of electrons on endohedrals

29th International Conference on Photonic, Electronic, and Atomic Collisions

Amusia, M.Ya.^1,2 ; Chernysheva, L.V.^2

Racah Institute of Physics, Hebrew University, Jerusalem

91904, Israel^1

A. F. Ioffe Physical-Technical Institute, St. Petersburg

194021, Russia^2

关键词: Additivity;    Carbon atoms;    Endohedrals;    Hartree-fock;    Polarization potential;    Random phase approximation with exchanges;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072004/pdf
DOI  :  10.1088/1742-6596/635/7/072004

来源: IOP

【 摘 要 】

It is demonstrated that an inner atom, either Ne or Ar, qualitatively affects the electron scattering phases upon an endohedral, in spite of the fact that the fullerene consists of 60 carbon atoms, while the atom staffed inside is only one. Calculations are performed in the one-electron Hartree-Fock (HF) and random phase approximation with exchange (RPAE) for the inner atom while the fullerenes shell is substituted by static potential without and with the polarization potential. The total endohedral scattering phase is a sum of atomic, Ne or Ar, and fullerenes C60phases, contrary to the intuitive assumption that the total phases on C60and Ne@C60or Ar@C60has to be the same.