A new threshold of uncovering the nature of glass transition:The slow β relaxation in glassy states |
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基金项目: | supported by the National Natural Science Foundation of China (Grant No.50801041);;National Basic Research Program of China (Grant No.2007CB613901);;Research Fund for the Doctoral Program of Higher Education of China (Grant No.200804221041) |
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摘 要: | The glass transition involves more than one dynamic relaxation mechanisms in supercooled liquids,such as α relaxation,slow β relaxation and fast β relaxation and so on.For the traditional theoretical system,α relaxation is believed mainly responsible for the nature of the glass transition as the beginning of the phenomenon.This idea,however,has been open to a big challenge since recent studies have indicated that slow β relaxation closely relates to α relaxation.Slow β relaxation determines the characterist...
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关 键 词: | glass transition β relaxation liquid fragility energy landscape excess wing boson peak |
收稿时间: | 2009-05-17 |
修稿时间: | 2009-08-08 |
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