Smectic membranes in motion: Approaching the fast limits of X-ray photon correlation spectroscopy

被引：63

作者：

Sikharulidze, I

Dolbnya, IP

Fera, A

Madsen, A

Ostrovskii, BI

de Jeu, WH

机构：

[1] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands

[2] European Synchrotron Radiat Facil, DUBBLE CRG, F-38043 Grenoble, France

[3] European Synchrotron Radiat Facil, ID10A, F-38043 Grenoble, France

[4] Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.88.115503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics of the layer-displacement fluctuations in smectic membranes have been studied by x-ray photon correlation spectroscopy (XPCS). We report transitions from an oscillatory damping regime to simple exponential decay of the fluctuations, both as a function of membrane thickness and upon changing from specular to off-specular scattering. This behavior is in agreement with recent theories. Employing avalanche photodiode detectors and the uniform filling mode of the synchrotron storage ring, the fast limits of XPCS have been explored down to 50 ns.

引用

页码：4 / 115503

页数：4

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