Slow motion in a metallic liquid

被引：91

作者：

Meyer, A

Wuttke, J

Petry, W

Randl, OG

Schober, H

机构：

[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.80.4454

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Liquid Zr46.8Ti8.2Cu7.5Ni10Be27.5 has been studied by quasielastic neutron scattering. The microscopic dynamics of this bulk glass forming alloy deviates qualitatively from simple metallic liquids; it shows two-step structural relaxation like other Liquids in their supercooled state. Unexpectedly for a nonfragile system, fast beta relaxation is in full accord with the mode-coupling theory of the liquid to glass transition. The long-time alpha relaxation suggests failure of the Stokes-Einstein relation.

引用

页码：4454 / 4457

页数：4

共 40 条

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