TY  - JOUR
AU  - Lentzen, Markus
TI  - Relativistic correction of atomic scattering factors for high-energy electron diffraction
JO  - Acta crystallographica / A Foundations and advances Section A
VL  - A75
IS  - 6
SN  - 2053-2733
CY  - Oxford [u.a.]
PB  - Blackwell
M1  - FZJ-2019-05238
SP  - 1-5
PY  - 2019
AB  - Relativistic electron diffraction depends on linear and quadratic terms in the electric potential, the latter being neglected in the frequently used relativistically corrected Schrödinger equation. The quadratic electric potential term modifies atomic scattering amplitudes in particular for large-angle scattering and backscattering. The respective correction increases with increasing scattering angle, increasing atomic number and increasing kinetic energy. Conventional tabulations for electron scattering and its large-angle extrapolations can be amended in closed form by a universal correction based on the screened Coulomb potential squared.
LB  - PUB:(DE-HGF)16
C6  - pmid:31692461
UR  - <Go to ISI:>//WOS:000495439700008
DO  - DOI:10.1107/S2053273319012191
UR  - https://juser.fz-juelich.de/record/865976
ER  -