PAL signature of physical ageing in chal
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Adam Ingram; Andrzej Kozdras; Oleh Shpotyuk; Roman Golovchak
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Article
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2012
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John Wiley and Sons
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English
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## Abstract Kinetics of physical ageing (PhA) far below the glass transition temperature (__T__~g~) is studied by positron annihilation lifetime and differential scanning calorimetry techniques for vitreous As~20~Se~80~ as typical representative of network glasses. The increased density fluctuation