Lyotropic lamellar phase doped with a nematic phase of magnetic nanorods.
Lyotropic lamellar phase doped with a nematic phase of magnetic nanorods.
复制标题
溶致层状相掺杂有向列相的磁性纳米棒。
作者：
D. Constantin;P. Davidson;C. Chanéac
我们报道了一种杂化中间相，其结合了非离子表面活性剂溶致体系的层状有序和限制在表面活性剂层之间的无机纳米棒浓溶液的向列有序。该中间相的高度排列的样品可以通过热退火获得，并且纳米棒的取向很容易用磁场控制。高分辨率同步加速器 X 射线散射和偏振光学显微镜表明，与孤立的对应物相比，向列和层状有序都发生了改变，证明了它们的相互作用。
We report the elaboration of a hybrid mesophase combining the lamellar order of a lyotropic system of nonionic surfactant and the nematic order of a concentrated solution of inorganic nanorods confined between the surfactant layers. Highly aligned samples of this mesophase can be obtained by thermal annealing, and the orientation of the nanorods is readily controlled with a magnetic field. High-resolution synchrotron X-ray scattering and polarized optical microscopy show that, compared to their isolated counterparts, both the nematic and lamellar orders are altered, demonstrating their interplay.