Low-density crystals in charged colloids: Comparison with Yukawa theory

B I Rios De Anda; Antonia Statt; Francesco Turci; C P Royall

doi:10.1002/ctpp.201400099

Low-density crystals in charged colloids: Comparison with Yukawa theory

B I Rios De Anda, Antonia Statt, Francesco Turci, C P Royall

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Abstract

Charged colloids can behave as Yukawa systems, with similar phase behaviour. Using particle-resolved studies, we consider a system with an unusually long Debye screening length which forms crystals at low colloid volume fraction {\phi} ~ 0.01. We quantitatively compare this system with the Yukawa model and find that its freezing point is compatible with the theoretical prediction but that the crystal polymorph is not always that expected. In particular we find body-centred cubic crystals where face-centred cubic crystals are expected.

Original language	English
Pages (from-to)	172-179
Number of pages	8
Journal	Contributions to Plasma Physics
Volume	55
Issue number	2-3
Early online date	23 Jan 2015
DOIs	https://doi.org/10.1002/ctpp.201400099
Publication status	Published - 26 Feb 2015

Bibliographical note

Date of Acceptance: 01/12/2014

Keywords

Colloids
Yukawa model

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10.1002/ctpp.201400099Licence: Unspecified

1501.01795v1
This is the pre-peer reviewed version of the following article: Rios de Anda, I., Statt, A., Turci, F. and Royall, C.P. (2015), Low-Density Crystals in Charged Colloids: Comparison with Yukawa Theory. Contrib. Plasma Phys., 55: 172–179, which has been published in final form at doi: 10.1002/ctpp.201400099.
Accepted author manuscript, 2.66 MBLicence: Unspecified

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abstract = "Charged colloids can behave as Yukawa systems, with similar phase behaviour. Using particle-resolved studies, we consider a system with an unusually long Debye screening length which forms crystals at low colloid volume fraction {\phi} ~ 0.01. We quantitatively compare this system with the Yukawa model and find that its freezing point is compatible with the theoretical prediction but that the crystal polymorph is not always that expected. In particular we find body-centred cubic crystals where face-centred cubic crystals are expected.",

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AU - Statt, Antonia

AU - Turci, Francesco

AU - Royall, C P

N1 - Date of Acceptance: 01/12/2014

PY - 2015/2/26

Y1 - 2015/2/26

N2 - Charged colloids can behave as Yukawa systems, with similar phase behaviour. Using particle-resolved studies, we consider a system with an unusually long Debye screening length which forms crystals at low colloid volume fraction {\phi} ~ 0.01. We quantitatively compare this system with the Yukawa model and find that its freezing point is compatible with the theoretical prediction but that the crystal polymorph is not always that expected. In particular we find body-centred cubic crystals where face-centred cubic crystals are expected.

AB - Charged colloids can behave as Yukawa systems, with similar phase behaviour. Using particle-resolved studies, we consider a system with an unusually long Debye screening length which forms crystals at low colloid volume fraction {\phi} ~ 0.01. We quantitatively compare this system with the Yukawa model and find that its freezing point is compatible with the theoretical prediction but that the crystal polymorph is not always that expected. In particular we find body-centred cubic crystals where face-centred cubic crystals are expected.

KW - Colloids

KW - Yukawa model

U2 - 10.1002/ctpp.201400099

DO - 10.1002/ctpp.201400099

M3 - Article (Academic Journal)

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VL - 55

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EP - 179

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

IS - 2-3

ER -

Low-density crystals in charged colloids: Comparison with Yukawa theory

Abstract

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Keywords

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