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Positron Annihilation During Pre-crystallizat ion Process in an Amorphous Silver Ionic Conductor |
CAO Shixun*;CHEN Liquan**;XUE Rongjian**;HE Yusheng;YU Weizhong |
*Department of Physics, Henan Normal University, Xinxiang 453002
**Institute of Physics, Academia Sinica, Beiing 100080
Department of Physics, Tsinghua University, Beijing 100084 |
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Cite this article: |
CAO Shixun, CHEN Liquan, XUE Rongjian et al 1993 Chin. Phys. Lett. 10 37-40 |
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Abstract The study of positron annihilation on amorphous 0.60AgI-O.25Ag2O-0.15P2O5 has been carried out in the temperature range from 100 to 350K. The temperature dependence of average lifetime shows anomalous peaks at 208, 228, 325, 338 K indicating possible structure relaxation. Especially the last two peaks reflect the structural changes during pre-crystallization process of the amorphous ionic conductor. These results are consistent with that of ultrasonic attenuation and ionic conductivity experiments on the same samples.
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Keywords:
66.30.Hs
78.70.Bj
62.65.+h
61.42.+h
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Published: 01 January 1993
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