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Ultrafine Particles

DEC 01, 1987
Particles smaller than a tenth of a micron have properties different from those of larger particles of the same materials and are finding use as catalysts, filters, light absorbers, medical tools, magnetic media and new materials.

DOI: 10.1063/1.881093

Chikara Hayashi

Scientists have been dealing with particles with diameters in the range 1–100 nm, albeit in dispersed systems, since the founding of colloid chemistry in the 1860s. However, it is only in the last 25 years that we have been able to study individual particles of this size. The result has been the discovery that these “ultrafine” particles have properties not displayed by larger or smaller collections of atoms or molecules, properties that suggest many scientific and technological applications.

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References

  1. 1. C. Hayashi, J. Vac. Sci. Tech. A 5(4), part 2, 1375 (1987).https://doi.org/JVTAD6

  2. 2. R. Kubo, J. Phys. Soc. Japan 17, 975 (1962).https://doi.org/JUPSAU

  3. 3. C. Taupin, J. Phys. Chem. Solids 28, 41 (1967).https://doi.org/JPCSAW

  4. 4. S. Kobayashi, W. Sasaki, J. Phys. Soc. Japan 32, 1234 (1972); https://doi.org/JUPSAU
    S. Kobayashi, W. Sasaki, 36, 714 (1974);
    S. Kobayashi, W. Sasaki, 48, 37 (1980);
    S. Kobayashi, W. Sasaki, 51, 1095 (1982).

  5. 5. P. Yee, W. D. Knight, Phys. Rev. B 11, 3261 (1975). https://doi.org/PLRBAQ
    W. A. Hines, in Proc. Int. Conf. Low Temperature Physics XII, (1971) p. 591.

  6. 6. K. Kimoto, Y. Kamiya, M. Nonoyama, R. Uyeda, Japan J. Appl. Phys. 2, 702 (1963).https://doi.org/JJAPA5

  7. 7. F. Komori, S. Kobayashi, W. Sasaki, J. Phys. Soc. Japan 51, 3136 (1982).https://doi.org/JUPSAU

  8. 8. K. Sattler, J. Muhlbach, E. Recknagel, Phys. Rev. Lett. 45, 821 (1980).https://doi.org/PRLTAO

  9. 9. S. Nagasaki, ed., Chobiryushi (Japanese for “Ultrafine Particles”), AGNE Technical Center, Minamiaoyama 5‐1‐25, Kitamura Bldg., Minatoku, Tokyo, no. 1 (1975) and no. 2 (1984).
    Chobiryushi—Science and Applications [Kagakusosetsu (Chemical Review), vol. 48] Chemical Society of Japan, Tokyo (1985).
    Surf. Sci. 156, parts 1 and 2 (1985), a special issue. https://doi.org/SUSCAS
    Surf. Sci. 106 (1981). https://doi.org/SUSCAS
    J. Phys. (Paris) C‐2 (1977).
    Physics and Chemistry of Small Clusters (NATO ASI Series B: Physics, vol. 158), Plenum, New York (1987). Sugano, S. Ohnishi, eds., Microclusters, Springer‐Verlag, Tokyo (1987).

  10. 10. G. Forossati, H. Godfrin, B. Hëbral, G. Schumacher, D. Thoulouze, in Proc. Int. Symp. Physics at Ultralow Temperatures, Cryogenic Engineering Society, Tokyo (1977), p. 205.

  11. 11. L. D. Marks, D. J. Smith, Nature 303, 316 (1983). https://doi.org/NATUAS
    L. D. Marks, Philos. Mag. A49, 81 (1984).https://doi.org/PMAADG

  12. 12. S. Ogawa, Y. Tanishiro, K. Takayanagi, K. Yagi, J. Vac. Sci. Technol. A 5, 1735 (1987).https://doi.org/JVTAD6

  13. 13. R. P. Blakemore, Science 190, 377 (1975). https://doi.org/SCIEAS
    R. B. Frankel, R. P. Blakemore, F. F. Torres de Avaujo, D. M. S. Esquivel, J. Danon, Science 212, 1269 (1981). https://doi.org/SCIEAS
    R. B. Frankel, G. C. Papaefthymiou, R. B. Blakemore, W. O’Brien, Biochim. et Biophys. Acta 11202 (1983).

  14. 14. H. Kakuta, in Proc. Int. Symp. Immobilized Enzymes and Cells, in press.

  15. 15. S. B. Sato, Y. Sako, S. Yamashina, S. Ohnishi, J. Biochem. 100, 1481 (1986).

  16. 16. H. Toyotama, in Final Report of the Ultrafine Particles Project, Research Development Corporation of Japan, 5‐2, Nagatacho 2‐chome, Chiyoda‐ku, Tokyo 100, Japan (1986), p. 83.

  17. 17. S. Kashu, E. Fuchita, T. Manabe, C. Hayashi, Japan J. Appl. Phys. 23, L910 (1984).

  18. 18. T. Hayashi, T. Nagayama, J. Chem. Soc. Japan 6, 1050 (1984).

  19. 19. S. Umemura, in Final Report of the Ultrafine Particles Project, Research Development Corporation of Japan, 5‐2, Nagatacho 2‐chome, Chiyoda‐ku, Tokyo 100, Japan (1986).

  20. 20. H. Watanabe, in The Physics and Fabrication of Microstructures and Microdevices, M. J. Kelly, C. Weisbuch, eds., Springer‐Verlag, Berlin (1986) p. 158.
    T. Inoshita, H. Watanabe, Optoelectron. Devices Technol. 1, 33 (1986).
    T. Inoshita, H. Watanabe, in Microclusters, Sugano, S. Ohnishi, eds., Springer‐Verlag, Tokyo (1987) p. 281.

More about the Authors

Chikara Hayashi. Ulvac Corporation, Chigasaki, Japan.

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Volume 40, Number 12

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