電子線回折におけるBorn近似

抄録

The relation between the infinite order Born approximation and the usual dynamical treatment in the electron diffraction theory is discussed. The infinite order Born approximation is found to be equivalent to the dynamical theory, so long as the crystal potential has the periodicity of the lattice. It is thus seen that recent theories in LEED (low energy electron diffraction) in which the absorption effect is neglected are nothing but the well-known dynamical theory and not treatments characteristic to LEED. Therefore the interesting features which have so far been considered to be peculiar to LEED are not necessarily restricted to the low energy region.