A model for the fragile-to-strong transition in water

被引：43

作者：

Jagla, EA ^{[1
]}

机构：

[1] Int Ctr Theoret Phys, Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 50期

关键词：

D O I：

10.1088/0953-8984/11/50/317

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A model based on the existence of two different competing local structures in water is described. It is shown that it can explain the transition between fragile and strong behaviour that supercooled water undergoes at around 220 K. The high-temperature behaviour is similar to that observed in standard fragile glass formers. The strong behaviour at low temperatures is associated with the existence of a remanent configurational entropy arising from the possibility of locally choosing between the two possible environments.

引用

页码：10251 / 10258

页数：8

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