A fast algorithm for phase grating preparation by real space method

Abstract

Abstract: Based on a definitely integral formula, an expression of calculating atomic potential distribution function U(r) in a unit cell is derived as follows: Making use of this expression to calculate the phase grating in high resolution image simulation can greatly reduce the calculating time. In this paper, the derivation of the expression is introduced, and then the computer routine is explained in details. Finally the potential projection map of Mg44Rh7 along [001] direction is shown as an illustration. All operations are carried out in real space, so we call the calculation method as the real space method.

Key words:

Qiuxiang LIU, Yuanming WANG, Qibin YANG, Xiaohong YAN. A fast algorithm for phase grating preparation by real space method[J]. J Mater Sci Technol, 2001, 17(02): 240-242.

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A fast algorithm for phase grating preparation by real space method

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