Recent results from the ILL NSEs

被引:5
作者
Farago, Bela [1 ]
机构
[1] Inst Max Von Laue Paul Langevin, F-38000 Grenoble, France
关键词
neutron spin echo; cubic phase; microemulsion; surfactant; dynamics;
D O I
10.1016/j.physb.2007.02.050
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this paper I will try to present some recent results on less usual subjects, which I believe are forward pointing to fields which might develop faster as new sources/instruments become available. The first deals with an assembly of spherical microemulsions which under certain conditions self-organize themselves into a cubic phase. Applying contrast variation and covering the large dynamical range of NSE we just start to be able to identify the different kind of relaxations present [B. Molle, et al., Phys. Rev. Lett. 90 (2003) 068305]. The second shows a nice example of diffusion of alkane chains in porous material (zeolite). Here high resolution and high intensity were needed to pinpoint the predicted "window" effect [H. Jobic, et al., Angew. Chem. Int. Ed. 43(3) (2004) 364]. Finally some results on PMMA/PEO polymer blend will be shown, where the high count rate and simultaneous multi-Q measurement on IN11C made the experiment possible. Still improved resolution would be very welcome to fully extract all possible information [B. Farago, et al., Phys. Rev. E 72 (2005) 031809]. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:91 / 94
页数:4
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