Structural relaxation enhanced by Cl ions in silica glass

被引：40

作者：

Saito, K ^{[1
]}

Ikushima, AJ ^{[1
]}

机构：

[1] Toyota Technol Inst, Frontier Mat Lab, Tempa Ku, Nagoya, Aichi 468, Japan

来源：

APPLIED PHYSICS LETTERS | 1998年 / 73卷 / 09期

关键词：

D O I：

10.1063/1.122129

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of Cl ions on the structural relaxation in silica glass was investigated by observing the fictive temperature, which was determined from the position of infrared absorption peak around 2260 cm(-1) related to the average Si-O-Si bond angle. It has been found that Cl ions reduce the relaxation time of the long-range cooperative relaxation due to viscous flow, the so-called cr relaxation. Moreover, Cl ions reduce the relaxation time of a subrelaxational process, caused by local structural relaxation. Although Cl has been used in industry only for dehydrating silica glass for optical fibers, these structural relaxation enhanced by Cl may be used advantageously to develop ultralow-loss fiber glass. (C) 1998 American Institute of Physics. [S0003-6951(98)04035-2].

引用

页码：1209 / 1211

页数：3

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