Dynamics and correlations in magnetic colloidal systems studied by X-ray photon correlation spectroscopy

被引：56

作者：

Lal, J

Abernathy, D

Auvray, L

Diat, O

Grübel, G

机构：

[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[2] CEA Saclay, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France

来源：

EUROPEAN PHYSICAL JOURNAL E | 2001年 / 4卷 / 03期

关键词：

D O I：

10.1007/s101890170108

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied the static and dynamic behaviour of magnetic colloidal systems (ferrofluids) by Small-Angle X-ray Scattering (SAXS) and X-ray Photon Correlation Spectroscopy (XPCS). The main features of the novel XPCS technique will be illustrated by data taken on a model system, colloidal silica spheres. We will then present the results obtained on an optically opaque suspension of magnetic colloids (maghemite) in the wave vector range from 10(-3) to 10(-2) A(-1). Translational diffusion in zero field and anisotropic diffusion under external magnetic fields will be discussed.

引用

页码：263 / 271

页数：9

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