Extended Icosahedral Structures by Marko V. Jaric, Denis Gratias PDF

By Marko V. Jaric, Denis Gratias

ISBN-10: 0120406039

ISBN-13: 9780120406036

Show description

Read or Download Extended Icosahedral Structures PDF

Similar physics books

Download e-book for iPad: Feynman Lectures on Computation by Richard P. Feynman

From 1983 to 1986, the mythical physicist and instructor Richard Feynman gave a direction at Caltech referred to as prospects and barriers of Computing Machines. ”Although the lectures are over ten years outdated, lots of the fabric is undying and offers a Feynmanesque” evaluation of many normal and a few not-so-standard themes in desktop technological know-how.

Additional resources for Extended Icosahedral Structures

Example text

I defer edge and vertex connection to later discussion, and take up here icosahedra of the same orientations connected at faces. Because we have in mind that the connected icosahedra represent clusters of a t o m s , an important criterion is that the units cannot overlap. We do not specify the precise nature of the cluster, and so it is not possible to specify a priori the excluded volume a r o u n d each unit. However, it is reasonable to expect, and experience bears out, that the shape of the excluded volume affects the diffraction patterns relatively weakly.

Schaefer, R. , and Bendersky, L. A. In Aperiodicity and Order, Vol. 1, Intro­ duction to Quasicrystals, Ed. by Μ. V. Jaric (Academic Press, Boston, 1988). Stephens, P. , and Goldman, A. I. (1986). Phys. Rev. Lett. 56, 1168. Henley, C. L. (1986). Phys. Rev. B34, 797. , and Steinhardt, P. J. (1986). Phys. Rev. B34, 596. Yu-Zhang, K. (1987). Materials Science Forum 22-24, 627. Nissen, Η. , Beeli, C , and Csanady, A. (1988). Phil. Mag. B57, 587. Cahn, J. , and Gratias, D. (1986). J. Mater. Res. 1, 13.

Magnitude of phason momentum | G | for a first-fit icosahedral glass. The wave vector scales are appropriate for Al-Li-Cu. Small dots are results for model II discussed in Sec. 1. The experimental data points are taken from Heiney et al. (1987). X Over the range of G plotted in Fig. 5 and - 4 . 8 power of | G | , respectively. By way of contrast, the fitted intensity and width are independent of G". For suffi­ ciently small | G | , the peak width is limited by the finite sample size, and the intensity is on the order of TV , as discussed above.

Download PDF sample

Extended Icosahedral Structures by Marko V. Jaric, Denis Gratias

by Anthony

Rated 4.37 of 5 – based on 44 votes