hcp structure

hcp structure

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McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Well-known closure-domain structure [14] can be observed throughout most of the magnetic-domain images; tiny domains (<5 [micro] m long) with various magnetization directions were produced by the hcp structure of the sixfold-symmetry crystal.
Moreover, single-crystal Co changed from an hcp structure to an fcc one at around 450[degrees]C [17]; therefore, it is assumed that this structure change was related to the changes in the domain structure from 400 to 500[degrees]C.
However, not only our different viewpoint of such series but also our free-software program (based on information appearing in Appendix A) enables every researcher to evaluate and apply the effect of up to 50th neighboring atomic groups and their relative distances from an arbitrary inner atom in fcc, bcc, or hcp structure. For a simple representation Figure 3 shows examples up to 3rd nearest neighbors in fcc, bcc, and hcp cells.
There were already some attempts in literature to evaluate the effect of number of neighboring atoms and in some cases the effect of their relative atomic distances mostly for estimation of surface properties of pure metals in fcc, bcc, and hcp structures in [8, 9, 17, 18] and [10, 19, 20], respectively.
in [8, 9] used up to 3rd nearest neighbors for fcc and bcc, respectively, and in [10] used up to 7th nearest neighbors for hcp structures, while Wu et al.