scholarly journals Electron Scattering by H2 with and without Vibrational Excitation. III. Experimental and Theoretical Study of Inelastic Scattering

1970 ◽  
Vol 52 (9) ◽  
pp. 4516-4533 ◽  
Author(s):  
S. Trajmar ◽  
D. G. Truhlar ◽  
J. K. Rice ◽  
A. Kuppermann
Keyword(s):  
Inelastic Scattering ◽  
Electron Scattering ◽  
Theoretical Study ◽  
Vibrational Excitation

Electron scattering by N2 at 5 and 10 eV: Rotational–vibrational close‐coupling calculations and crossed beam studies of vibrational excitation

1976 ◽  
Vol 65 (8) ◽  
pp. 2962-2969 ◽  
Author(s):  
Donald G. Truhlar ◽  
Maynard A. Brandt ◽  
A. Chutjian ◽  
Santosh K. Srivastava ◽  
S. Trajmar
Keyword(s):  
Electron Scattering ◽  
Vibrational Excitation ◽  
Close Coupling

Z Dependence of Electron Scattering by Single Atoms into Annular Dark-Field Detectors

2011 ◽  
Vol 17 (6) ◽  
pp. 847-858 ◽  
Author(s):  
Michael M.J. Treacy
Keyword(s):  
Elastic Scattering ◽  
Inelastic Scattering ◽  
Cross Section ◽  
Electron Scattering ◽  
Dark Field ◽  
Single Atom ◽  
Single Atoms ◽  
Annular Dark Field ◽  
Annular Detector ◽  
The Cross

AbstractA simple parameterization is presented for the elastic electron scattering cross sections from single atoms into the annular dark-field (ADF) detector of a scanning transmission electron microscope (STEM). The dependence on atomic number, Z, and inner reciprocal radius of the annular detector, q0, of the cross section σ(Z,q0) is expressed by the empirical relationwhere A(q0) is the cross section for hydrogen (Z = 1), and the detector is assumed to have a large outer reciprocal radius. Using electron elastic scattering factors determined from relativistic Hartree-Fock simulations of the atomic electron charge density, values of the exponent n(Z,q0) are tabulated as a function of Z and q0, for STEM probe sizes of 1.0 and 2.0 Å.Comparison with recently published experimental data for single-atom scattering [Krivanek et al. (2010). Nature464, 571–574] suggests that experimentally measured exponent values are systematically lower than the values predicted for elastic scattering from low-Z atoms. It is proposed that this discrepancy arises from the inelastic scattering contribution to the ADF signal. A simple expression is proposed that corrects the exponent n(Z,q0) for inelastic scattering into the annular detector.

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