The interactions between excited and ground state rare gas atoms
- 1 December 1978
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 69 (11) , 5091-5097
- https://doi.org/10.1063/1.436502
Abstract
In this paper, we report on a two component potential model. A general formula for the electrostatic part is derived, giving the second order perturbation terms of the multipolar expansion. The first of these terms is the well‐known van der Waals potential. In the second section, we study the repulsive part of the potential using the Smirnov–Roueff potential: this is based on the scattering properties of the optical electron of an excited state atom on a second atom in its ground state. We introduce a correction term which enables one to find a more realistic potential well, even if the scattering length of the atom in its ground state is negative. In a third section, we apply the model to the calculation of the interaction potentials of rare gases in the first excited states, and the Ar, Kr, and Xe atoms in their ground states.Keywords
This publication has 36 references indexed in Scilit:
- A comparison between two semi-empirical interatomic potentialsJournal of Physics B: Atomic and Molecular Physics, 1977
- Application of Baylis-Gombas pseudopotential to inelastic atomic collisionsJournal of Physics B: Atomic and Molecular Physics, 1977
- Optical interaction potentials from high-resolution differential cross section measurements at thermal energies. II. He(21S)+ArJournal of Physics B: Atomic and Molecular Physics, 1977
- Optical interaction potentials from differential cross section measurements at thermal energies. I. He(23S)+ArJournal of Physics B: Atomic and Molecular Physics, 1976
- Theory of collisional angular-momentum mixing of Rydberg statesPhysical Review A, 1976
- Total cross sections for Na(3 2P1/2→3 2P3/2) + rare gas collisionsThe Journal of Chemical Physics, 1976
- Collision broadening and relaxation of the resonance lines of lithium and sodium in helium gasProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1975
- A constructive model potential method for atomic interactionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1974
- Atom-excited atom exchange interaction at large distancesJournal of Physics B: Atomic and Molecular Physics, 1971
- Atomic dipole-quadrupole dispersion forcesJournal of Physics B: Atomic and Molecular Physics, 1968