DYNAMIC VISCOSITY OF A SIMPLE GLASS-FORMING LIQUID

被引：74

作者：

MENON, N

NAGEL, SR

VENERUS, DC

机构：

[1] UNIV CHICAGO, DEPT PHYS, CHICAGO, IL 60637 USA

[2] IIT, DEPT CHEM ENGN, CHICAGO, IL 60616 USA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.73.963

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the viscosity eta and the frequency-dependent shear modulus of the glass-forming liquid di-n-butylphthalate. Both eta and the shear relaxation time tau have non-Arrhenius dependence on temperature T. The ratio eta/tauT is weakly T dependent implying a slight deviation from the Einstein-Debye equation. This is fully explained by a smooth evolution of the relaxation spectrum and is not accompanied by growth of the elastic shear modulus or a correlation length, as had been suggested.

引用

页码：963 / 966

页数：4

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