Hostname: page-component-8448b6f56d-xtgtn Total loading time: 0 Render date: 2024-04-25T00:27:27.381Z Has data issue: false hasContentIssue false

Predicted Infrared Spectrum and X-Ray Diffraction Patterns for Diamond Polyiypes

Published online by Cambridge University Press:  26 February 2011

Andrew W. Phelps
Affiliation:
Diamond Materials. Inc., 2820 E. College Ave., State College PA 16801
William Howard
Affiliation:
Department of Materials Science and Engineering, The Pennsylvania State University, University Park PA 16802
William B. White
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park PA 16802
Karl E. Spear
Affiliation:
Department of Materials Science and Engineering, The Pennsylvania State University, University Park PA 16802
D. Huang
Affiliation:
Department of Materials Science and Engineering, The Pennsylvania State University, University Park PA 16802
Get access

Abstract

The concept of diamond polytypism was examined and extended beyond the previous work to gain more analytical tools with which to understand and characterize these materials. This paper reports the band positions predicted for the expected infrared active modes of several diamond polytypes and the calculated diffraction patterns for the 21R and 15R polytypes. The infrared active modes were predicted on the basis of a generalized Brlllouin zone similar to that developed for silicon carbide polytypes. The diffraction patterns for the 21R and 15R polytypes were calculated in a manner similar to that used previously for the hexagonal polytypes. These results complete the suite of basic diffraction patterns for diamond polytypes.

Type
Research Article
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Frenklach, M., Kematick, R., Huang, D., Howard, W., Spear, K. E., Phelps, A. W., Koba, R., J. Appl. Phys., 66, 395, (1989).Google Scholar
2. Spear, K. E., Phelps, A. W., White, W. B., Manuscript in preparation, (1989).Google Scholar
3. Phelps, A. W., Submitted to J. Mat. Sc. Lett., (1989).Google Scholar
4. Ergun, S. and Alexander, L. E., Nature, 195, 765, (1962).Google Scholar
5. Frondel, C. and Marvin, U.B., Nature, 214, 587, (1967).Google Scholar
6. Holcombe, C. E., USAEC UC-4 Rept. Y-1887, (1973).Google Scholar
7. Feldman, D. W., Parker, J. H. Jr, Choyke, W. J., Patrick, L., Phys Rev., 170, 698, (1968a).Google Scholar
8. Feldman, D. W., Parker, J. H. Jr, Choyke, W. J., Patrick, L., Phys Rev., 173, 787, (1968b).Google Scholar
9. Nakashlma, S., Katahama, H., Nakakura, Y., Mitsuishi, A., Phys. Rev. B, 33, 5721, (1986).Google Scholar
10. Vetelino, J. F. and Mitra, S. S.. Phys. Rev., 178, 1349 (1969).Google Scholar
11. Knight, D. S. and White, W. B., J. Mater. Res., 4,385, (1989).Google Scholar
12. Solin, S.A and Kobliska, R. J., in Amorohous and Liould Semiconductors, ed. by Stuke, J., (Taylor and Francis, London,1974), 1251.Google Scholar
13. Warren, J. L., Wenzel, R. G., Yarnell, J. L. in Inelastic Scattering of Neutrons, (International Atomic Energy Agency, Vienna, 1965), p. 361.Google Scholar
14. Smith, D.K., Department of Geosciences. The Pennsylvania State University. (1989).Google Scholar
15. Shaffer, P. T. B., Acta Cryst., B25 477, (1969).Google Scholar