The energy of the quasi-free electron in near critical point nitrogen

[Display omitted] ► Field enhanced photoemission (FEP) is used to measure V0(ρ) in N2. ► V0(ρ) in N2 from low density to the density of the triple point liquid is obtained for the first time. ► A critical point effect in V0(ρ) in N2 observed and analyzed. ► The local Wigner–Seitz approach is shown t...

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Bibliographic Details
Published in:Chemical physics letters 2012-09, Vol.546, p.18-23
Main Authors: Lushtak, Yevgeniy, Evans, C.M., Findley, G.L.
Format: Article
Language:English
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Summary:[Display omitted] ► Field enhanced photoemission (FEP) is used to measure V0(ρ) in N2. ► V0(ρ) in N2 from low density to the density of the triple point liquid is obtained for the first time. ► A critical point effect in V0(ρ) in N2 observed and analyzed. ► The local Wigner–Seitz approach is shown to model V0(ρ) in N2. Field enhanced photoemission is used to measure the density dependent quasi-free electron energy V0(ρ) in the strongly absorbing gas N2 for the first time. V0(ρ) in N2 was obtained from low density to the density of the triple point liquid, at noncritical temperatures and on an isotherm near the critical isotherm. A novel critical point effect is observed and is accurately explained by the local Wigner–Seitz model.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2012.07.022