Capillary-wave roughening of surface-induced layering in liquid gallium.

نویسندگان

  • Regan
  • Pershan
  • Magnussen
  • Ocko
  • Deutsch
  • Berman
چکیده

The temperature dependence of surface-induced atomic layering in liquid gallium has been investigated with x-ray reflectivity. The prominent layering peak at qz52.4 Å 21 decreases dramatically upon heating from 22 to 170 °C, but its width stays, unexpectedly, unchanged. The decrease is traced to the temperature dependence of capillary-wave induced surface roughness. The constant width indicates a temperature-independent layering decay length. The measured layering amplitudes are found to be significantly underestimated by existing theory and molecular simulations. @S0163-1829~96!02337-5#

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عنوان ژورنال:
  • Physical review. B, Condensed matter

دوره 54 14  شماره 

صفحات  -

تاریخ انتشار 1996