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

Abstract

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.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [3]
  1. Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI (Switzerland)
  2. (Switzerland) and ETH Zurich, 8093 Zuerich (Switzerland)
  3. (Netherlands)
Publication Date:
OSTI Identifier:
21072376
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; Journal Volume: 75; Journal Issue: 2; Other Information: DOI: 10.1103/PhysRevE.75.021501; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COLLOIDS; DENSITY; LIQUIDS; PHASE STABILITY; PHASE STUDIES; SOLUTIONS; X-RAY DIFFRACTION

Citation Formats

Bunk, Oliver, Diaz, Ana, Pfeiffer, Franz, David, Christian, Padeste, Celestino, Keymeulen, Heilke, Willmott, Philip R., Patterson, Bruce D., Schmitt, Bernd, Satapathy, Dillip K., Veen, J. Friso van der, Guo Hua, Wegdam, Gerard H., Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI, and Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam. Confinement-induced liquid ordering investigated by x-ray phase retrieval. United States: N. p., 2007. Web. doi:10.1103/PHYSREVE.75.021501.
Bunk, Oliver, Diaz, Ana, Pfeiffer, Franz, David, Christian, Padeste, Celestino, Keymeulen, Heilke, Willmott, Philip R., Patterson, Bruce D., Schmitt, Bernd, Satapathy, Dillip K., Veen, J. Friso van der, Guo Hua, Wegdam, Gerard H., Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI, & Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam. Confinement-induced liquid ordering investigated by x-ray phase retrieval. United States. doi:10.1103/PHYSREVE.75.021501.
Bunk, Oliver, Diaz, Ana, Pfeiffer, Franz, David, Christian, Padeste, Celestino, Keymeulen, Heilke, Willmott, Philip R., Patterson, Bruce D., Schmitt, Bernd, Satapathy, Dillip K., Veen, J. Friso van der, Guo Hua, Wegdam, Gerard H., Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI, and Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam. Thu . "Confinement-induced liquid ordering investigated by x-ray phase retrieval". United States. doi:10.1103/PHYSREVE.75.021501.
@article{osti_21072376,
title = {Confinement-induced liquid ordering investigated by x-ray phase retrieval},
author = {Bunk, Oliver and Diaz, Ana and Pfeiffer, Franz and David, Christian and Padeste, Celestino and Keymeulen, Heilke and Willmott, Philip R. and Patterson, Bruce D. and Schmitt, Bernd and Satapathy, Dillip K. and Veen, J. Friso van der and Guo Hua and Wegdam, Gerard H. and Research Department Synchrotron Radiation and Nanotechnology, Paul Scherrer Institut, 5232 Villigen PSI and Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, Valckenierstraat 65, 1018 XE Amsterdam},
abstractNote = {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.},
doi = {10.1103/PHYSREVE.75.021501},
journal = {Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics},
number = 2,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}