On the motion of thermal electrons in n-alkane vapors

Christophorou, L. G.; Grant, MW; Pittman, D.

doi:10.1016/0009-2614(76)80265-5

Cited by 18 publications

(2 citation statements)

References 16 publications

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“…Mean scattering cross section measured at very low energies [5] for n-alkanes vapours is comparable with the mean geometric cross section of the molecule and the cross sections for these molecules increase along with the increase of their polarizability. For polar molecules the magnitude of the momentum transfer cross section at low energies can be correlated to the permanent dipole moment of the molecule [6,7].…”

Section: Introductionmentioning

confidence: 73%

On trends in total cross sections for electron (positron) scattering on atoms and molecules at intermediate energies

Szmytkowski

1989

Z Phys D - Atoms, Molecules and Clusters

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An examination of total electron and positron scattering cross sections in a large variety of atoms and molecules reveals a trend related to ground state target dipole polarizability. Some correlations of total cross section with diamagnetic susceptibility and the number of target electrons have also been noted. Experimental positron and electron cross sections between 100 and 500 eV can be reasonably well described by a simple formula based on polarizability and energy correlation.

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Section: Introductionmentioning

confidence: 73%

On trends in total cross sections for electron (positron) scattering on atoms and molecules at intermediate energies

Szmytkowski

1989

Z Phys D - Atoms, Molecules and Clusters

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“…Indeed, the formula derived by Vogt and Wannier (1954) predicts that for the pure polarization potential the cross section for electron capture depends on the polarizability (∼α 0.5 ). Since that time, correlations between experimental cross sections and the polarizability have been studied in some laboratories (Lampe et al 1957, Beran and Kevan 1968, Center and Mandl 1972, Christophorou et al 1976, Szmytkowski 1989, Nishimura and Tawara 1991, Christophorou and Illenberger 1993, Garcia and Manero 1997. As a result, some regression formulae have been found for selected families of molecules in which the electron-scattering TCS varies from target to target, with their polarizability like α x with x lying between 0.5 and 1 for different groups of targets under consideration.…”

Section: Xy 4 Molecules (X = C Si Ge and Y = H F Cl)mentioning

confidence: 99%

Experimental absolute total cross sections for low-energy electron collisions with tetrahedral compounds of germanium:

Szmytkowski

Możejko

Kasperski

1998

J. Phys. B: At. Mol. Opt. Phys.

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Absolute total cross section (TCS) of the electron collision with GeF 4 molecules has been measured in a linear transmission experiment for impact energies from 0.5 to 250 eV. The TCS function is dominated by a steep rise towards low energies below 3 eV. At energies above the minimum at 3 eV the TCS shows another enhancement spanned up to about 70 eV on which some resonant-like features are visible: the maximum centred near 6.5 eV and two weak peaks at 16 and 25 eV, respectively. A comparison with the recent measurements taken in the same laboratory for GeH 4 and GeCl 4 and for other targets of the same symmetry is made to search for similarities and/or differences between electron scattering TCSs for tetrahedral molecules. The data demonstrate that the general shape of the low-energy TCS for tetrahedral molecules depends on external rather than on central atoms.

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