论文部分内容阅读
Assuming that the wave function φ=eη, the Schrodinger equation can be written as △xuη+4πikxu▽xyη+4πikz ()η/()z+V(r)+()2η/()z2+(▽η)2=0/ .Neglecting the last two terms,an analytical expression of electron dynamical diffraction was derived by Qibin YANG et a