Jin Hee Kim

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 3, pp. 872-878, Mar. 2000
10.3745/KIPSTE.2000.7.3.872,   PDF Download:

Abstract

In this paper a computer programming for the expression of nearest neighbor atoms in face-centered cubic (FCC) and body-centered cubic (BCC) crystals was suggested as one of the approaches to understand each of the crystal structures. By using this computer programming the distance values between a reference atom and the nearest neighbor atoms, and the numbers of the nearest neighbor atoms were calculated and compared for the FCC and BCC crystals. In this algorithm, the positions of the atoms in a crystal were defined as two categories: the corner atoms and face- or body-centered atoms, and considered respectively. For the same order of nearest neighbor atoms except the second order ones the distance values from the reference atom were smaller in the FCC crystals than those in the BCC. Also, the numbers of the first and third nearest neighbor atoms in the FCC crystals were larger than those in the BCC. This difference was explained by the comparison of each atomic packing ratio of the FCC and BCC crystals. The algorithm used in this programming can also be expanded to the analysis of other crystal structures.

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