Dynamics of nanoparticles in a supercooled liquid

被引：123

作者：

Caronna, Chiara ^{[1
,2
]}

Chushkin, Yuriy ^{[1
]}

Madsen, Anders ^{[1
]}

Cupane, Antonio ^{[2
]}

机构：

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

[2] Dept Phys & Astron Sci, I-90123 Palermo, Italy

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.100.055702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamic properties of nanoparticles suspended in a supercooled glass forming liquid are studied by x-ray photon correlation spectroscopy. While at high temperatures the particles undergo Brownian motion the measurements closer to the glass transition indicate hyperdiffusive behavior. In this state the dynamics is independent of the local structural arrangement of nanoparticles, suggesting a cooperative behavior governed by the near-vitreous solvent.

引用

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