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Deuterium clusters in a strained palladium lattice

Published online by Cambridge University Press:  31 January 2011

Vittorio Rosato  and
Fabrizio Cleri
Vittorio Rosato
Affiliation:
Dipartimento Tecnologie Intersettoriali di Base, Divisione Materiali, E.N.E.A.–Centro Ricerche Energia Casaccia, P.O. Box 2400, I-00100 Roma A.D., Italy
Fabrizio Cleri
Affiliation:
Dipartimento Reattori Veloci, Divisione Metodi di Progetto, E.N.E.A.–Centro Ricerche Energia Casaccia, P.O. Box 2400, I-00100 Roma A.D., Italy
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Abstract

We report a first observation, of the behavior of clusters of deuterium atoms confined in a lattice vacancy in a Pd crystal, either at equilibrium or under the influence of externally applied lattice strains. Molecular dynamics simulations have been performed on both Pd perfect crystals and Pd crystals with a single vacancy, showing the energetic behavior and the dynamical values of the interatomic distance among deuterium atoms belonging to clusters of different sizes confined within the vacancy. At low temperatures, the smallest interatomic D-D distances are of the order of the D2 molecular bond length and are obtained during the transitory regimes induced by hydrostatic strains applied to the lattice.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 10 , October 1990 , pp. 2094 - 2099
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1Fleischmann, M., Pons, S., and Hawkins, M., J. Electr. Chem. 261, 301 (1989).Google Scholar
2Jones, S., Palmer, E. P., Czirr, J. B., Decker, D. L., Jensen, G. L., Thorne, J. M., Taylor, S. F., and Rafelski, J., Nature 338, 737 (1989).CrossRefGoogle Scholar
3DeNinno, A., Frattolillo, A., Lollobattista, G., Martinis, I., Martone, M., Mori, L., Possa, S., and Scaramuzzi, F., Europhys. Lett. 9, 221 (1989).Google Scholar
4Appleby, J., Los Alamos Conference on Cold Fusion, May 1989.Google Scholar
5Gai, M., Rugari, S. L., France, R. H., Lund, B. J., Zhao, Z., Davenport, A. J., Isaacs, H. S., and Lynn, K. G., Nature 340, 29 (1989).CrossRefGoogle Scholar
6Daw, M. S. and Baskes, M. I., Phys. Rev. B 29, 6443 (1984).CrossRefGoogle Scholar
7Christensen, O. B., Ditlevsen, P. D., Jacobsen, K. W., Stoltze, P., Nielsen, O. H., and Norskov, J. K., Phys. Rev. B 40, 1993 (1989).CrossRefGoogle Scholar
8Nordlander, P., Norskov, J. K., Besenbacher, F., and Myers, S. M., Phys. Rev. B 40, 1990 (1989).CrossRefGoogle Scholar
9Mintmire, J. W., Dunlap, B. I., Brenner, D. W., Mowrey, R. C., Ladouceur, H. D., Schmidt, P. P., White, C. T., and O'Grady, W. E., Phys. Lett. A138, 51 (1989).Google Scholar
10Maiani, L., Parisi, G., and Pietronero, L., Erice Workshop on Cold Fusion, Erice, April 12, 1989.Google Scholar
11Cassandro, M., Gallavotti, G., and Jona-Lasinio, G., University of Rome “La Sapienza”, Phys. Dept. preprint 672 (May 12, 1989); E. Tabet and A. Tenenbaum, ibidem, preprint 703 (September 27, 1989).Google Scholar
12Segrè, S. E., Atzeni, S., Briguglio, S., and Romanelli, F., Europhys. Lett. 11, 201 (1989).Google Scholar
13Gittus, J. and Bockris, J., Scientific Correspondence, Nature 339, 105 (1989).Google Scholar
14Rosato, V., Guillopé, M., and Legrand, B., Phil. Mag. A59, 321 (1989).CrossRefGoogle Scholar
15Foiles, S. M., Baskes, M. I., Melius, C. F., and Daw, M. S., J. Less- Common Metals 130, 465 (1987).CrossRefGoogle Scholar
16Molecular Dynamics Simulations of Statistical Mechanical System edited by Ciccotti, G. and Hoover, W. G. (North-Holland, Amsterdam, 1988)Google Scholar
17Carstanjen, H. D., Dunstl, J., Lobl, G., and Sizman, R., Phys. Status Solidi A 45, 529 (1978)CrossRefGoogle Scholar
18Picraux, S. T., Nucl. Instrum. Methods 182/183, 413 (1981).CrossRefGoogle Scholar
19Nordlander, P., Norskov, J. K., and Besenbacher, F., J. Phys. F 16, 1161 (1986)Google Scholar
20Jostsons, A., DuBose, C. K. H., Copeland, G. L., and Stiegler, J. O., J. Nucl. Mater. 49, 136 (1973/1974).Google Scholar