Local crystalline order in a 2D colloidal glass former

Ebert, Florian; Keim, Peter; Maret, Georg

Local crystalline order in a 2D colloidal glass former

Dateien

Ebert_Local crystalline order.pdfGröße: 4.39 MBDownloads: 545

Datum

2008

Autor:innen

Ebert, Florian

Keim, Peter

Maret, Georg

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

The European Physical Journal E. 2008, 26(1-2), pp. 161-168. ISSN 1292-8941. Available under: doi: 10.1140/epje/i2007-10270-8

Zusammenfassung

A mixture of two types of super-paramagnetic colloidal particles with long-range dipolar interaction is confined by gravity to a flat interface of a hanging water droplet. The particles are observed by video microscopy and the dipolar interaction strength is controlled by an external magnetic field. The local structure as obtained by pair correlation functions and bond order statistics is investigated as a function of system temperature and relative concentration. Although the system has no long-range order and exhibits glassy dynamics, different types of stable crystallites coexist. The local order of the globally disordered structure is explained by a small set of specific crystal structures. The statistics of crystal unit cells show a continuous increase of local order with decreasing system temperature as well as a dependence on sample history and local composition.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

EBERT, Florian, Peter KEIM, Georg MARET, 2008. Local crystalline order in a 2D colloidal glass former. In: The European Physical Journal E. 2008, 26(1-2), pp. 161-168. ISSN 1292-8941. Available under: doi: 10.1140/epje/i2007-10270-8

BibTex

@article{Ebert2008-05Local-16872,
  year={2008},
  doi={10.1140/epje/i2007-10270-8},
  title={Local crystalline order in a 2D colloidal glass former},
  number={1-2},
  volume={26},
  issn={1292-8941},
  journal={The European Physical Journal E},
  pages={161--168},
  author={Ebert, Florian and Keim, Peter and Maret, Georg}
}

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