Field-induced ordering phenomena in ferrofluids observed by small-angle neutron

被引:20
作者
Wiedenmann, A [1 ]
Heinemann, A [1 ]
机构
[1] Hahn Meitner Inst Berlin GmbH, Dept SF3, D-14109 Berlin, Germany
关键词
ferrofluids; field-induced ordering; nanostructures; small-angle scattering; polarised neutrons;
D O I
10.1016/j.jmmm.2004.11.017
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report on the evolution of inter-particle correlations of several concentrated Co ferrofluids in an external magnetic field. Starting from randomly oriented segments of uncorrelated chains in zero field we observe alignment of chains along an external field and the set-up of pseudo-crystalline hexagonal ordered domains when the strength of the magnetic field is increased. (c) 2004 Published by Elsevier B.V.
引用
收藏
页码:58 / 61
页数:4
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