Structural relaxations in amorphous water studied by hole-burning

被引：4

作者：

Giering, T ^{[1
]}

Haarer, D ^{[1
]}

机构：

[1] UNIV BAYREUTH,BIMF,D-95440 BAYREUTH,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 261卷 / 06期

关键词：

D O I：

10.1016/0009-2614(96)01004-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The annealing behavior of dye-doped amorphous water below its glass transition temperature was investigated by means of spectral hole-burning and IR spectroscopy. The dye molecules act, at low concentration, as optical probes of the water matrix. Measurements of the time-resolved spectral diffusion of spectral holes confirm that the narrowing of the quasi-homogeneous linewidth observed upon annealing is due co a reduction of the number density of two-level systems. Further information is gained from temperature cycling experiments. The results strongly indicate a transformation from a fragile to a strong glass by the formation of an H-bond network.

引用

页码：677 / 684

页数：8

共 33 条

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