Energy of the quasifree electron in argon and krypton
- Department of Chemistry and Biochemistry, Queens College-CUNY, Flushing, New York 11367 (United States) and Department of Chemistry, Graduate Center-CUNY, New York, New York 10016 (United States)
- Department of Chemistry, University of Louisiana at Monroe, Monroe, Louisiana 71209 (United States)
Field ionization measurements of CH{sub 3}I and C{sub 2}H{sub 5}I dopant high-n molecular Rydberg states in argon and krypton perturbers are presented as a function of perturber number density along various isotherms up to the density of the triple point liquid. Using these data, a new local Wigner-Seitz model for the density-dependent energy V{sub 0}({rho}{sub P}) of a quasifree electron in argon and krypton is developed. This model, which contains only one adjustable parameter, uses a local Wigner-Seitz radius derived from the local number density rather than from the bulk number density, includes a statistical mechanical calculation of both the ion/medium polarization energy and the electron/medium polarization energy, and includes the thermal kinetic energy of the quasifree electron. Using this model, V{sub 0}({rho}{sub P}) and the perturber-induced energy shift of the dopant ionization potential {delta}{sub D}({rho}{sub P}) are calculated to within {+-}0.1% of experiment. Previously reported V{sub 0}({rho}{sub P}) data for xenon are also shown to be interpretable within this new model.
- OSTI ID:
- 20718137
- Journal Information:
- Physical Review. A, Vol. 72, Issue 2; Other Information: DOI: 10.1103/PhysRevA.72.022717; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Calculation of the ground-state energy [ital V][sub 0] of quasifree positrons in rare-gas fluids
Temperature Effects on the Perturber Induced Shift of Dopant Ionization Energies in He and Ne