Dynamical and structural insights into the smectic phase of rod-like particles

E. Grelet, M.P. Lettinga, M. Bier, René Roij, van, Paul Schoot, van der

Research output: Contribution to journalArticleAcademicpeer-review

44 Citations (Scopus)


Self-diffusion in a model system of rod-like particles is studied in the smectic (or lamellar) phase. The experimental system is formed by a colloidal suspension of filamentous fd virus particles, which allows the direct visualization at the scale of the single particle of mass transport between the smectic layers. Self-diffusion takes place preferentially in the direction normal to the smectic layers and occurs in steps of one rod length, reminiscent of a hopping-type of transport. The probability density function is obtained experimentally at different times and is found to be in qualitative agreement with theoretical predictions based on a dynamical density functional theory.
Original languageEnglish
Article number494213
Pages (from-to)494213-1/7
JournalJournal of Physics: Condensed Matter
Issue number49
Publication statusPublished - 2008


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