Confinement-induced liquid ordering investigated by x-ray phase retrieval

Using synchrotron x-ray diffraction, we have determined the ensemble-averaged density profile of colloidal fluids within confining channels of different widths. We observe an oscillatory ordering-disordering behavior of the colloidal particles as a function of the channel width, while the colloidal solution remains in the liquid state. This phenomenon has been suggested by surface force studies of hard-sphere fluids and also theoretically predicted, but here we see it by direct measurements of the structure for comparable systems


Published in:
Physical Review E, 75, 2, 021501
Year:
2007
ISSN:
1539-3755
Note:
Part 1
Laboratories:




 Record created 2007-10-11, last modified 2018-01-28


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