Pressure Induced Structural Transitions in Nanometer Size Particles of PbS.

DOI Web Site 13 References
  • Qadri S. B.
    Condensed Matter and Radiation Sciences Division, U. S. Naval Research Laboratory
  • Skelton E. F.
    Condensed Matter and Radiation Sciences Division, U. S. Naval Research Laboratory
  • Yang J.
    Center for Biomolecular Science and Engineering, U. S. Naval Research Laboratory
  • Ratna B. R.
    Center for Biomolecular Science and Engineering, U. S. Naval Research Laboratory
  • Hu J. Z.
    Geophysical Laboratory and Center for High Pressure Research, Carnegie Institution of Washington

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  • Pressure Induced Structural Transitions

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Abstract

The effects of particle sizes in the nanometer range on pressure-induced phase transitions of PbS have been investigated using energy-dispersive x-ray diffraction of synchrotron-wiggler radiation. Compared to bulk crystals, the onset of transition pressure showed an increase with decreasing particle size. The results also show a reduced b-axis lattice parameter for the high pressure orthorhombic phase, as compared to the bulk PbS.

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