Collective dynamics of a ferroelectric smectogen in geometrical confinement

被引：19

作者：

Naji, L ^{[1
]}

Kremer, F ^{[1
]}

Stannarius, R ^{[1
]}

机构：

[1] Univ Leipzig, Fak Phys & Geowissensch, D-04103 Leipzig, Germany

来源：

LIQUID CRYSTALS | 1998年 / 25卷 / 03期

关键词：

D O I：

10.1080/026782998206164

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate the influence of geometric confinement on the dynamics in a ferroelectric smectic C* material. Molecular and collective relaxation processes are studied by means of broadband dielectric spectroscopy. In microporous material (pore size 200 nm) the Goldstone mode (GM) is still observed, but it is shifted to lower frequencies compared with bulk samples. In nanoporous material (pore size 7.5 nm), the collective reorientation modes are completely suppressed. In all samples, the molecular processes seem to be uninfluenced by the confinement.

引用

页码：363 / 369

页数：7

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