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Atomic motion in Se nanoparticles embedded into a porous glass matrix

Author

Listed:
  • I. V. Golosovsky
  • O. P. Smirnov
  • R. G. Delaplane
  • A. Wannberg
  • Y. A. Kibalin
  • A. A. Naberezhnov
  • S. B. Vakhrushev

Abstract

By neutron diffraction it was shown that nanostructured Se confined within a porous glass matrix exists in a crystalline as well as in an amorphous state. The spontaneous crystallization of crystalline Se from confined amorphous phase was observed. The root-mean-square amplitudes of the atomic motions in the bulk as well as in confinement are found to be essentially different in a basal plane and in the perpendicular direction along the hexagonal axis. The atomic motions in the confined Se differ from the atomic motions in the bulk at low temperatures. The results shows an unusual “freezing" of the atomic motion along the chains, while the atomic motions in the perpendicular plane still keep. This “freezing" is accompanied by the deformation of nanoparticles and the appearance of inner stresses. This effect is attributed to the interaction of confined nanoparticle with the cavity walls. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Suggested Citation

  • I. V. Golosovsky & O. P. Smirnov & R. G. Delaplane & A. Wannberg & Y. A. Kibalin & A. A. Naberezhnov & S. B. Vakhrushev, 2006. "Atomic motion in Se nanoparticles embedded into a porous glass matrix," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 54(2), pages 211-216, November.
    • Handle: RePEc:spr:eurphb:v:54:y:2006:i:2:p:211-216
    DOI: 10.1140/epjb/e2006-00446-8
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