Explosive transition in amorphous microwire |
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Authors: | I Yu Borisenko V A Tulin |
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Institution: | 1.Institute of Microelectronics Technology and High Purity Materials,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia |
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Abstract: | An amorphous microwire in a glass shell offers a quick thermal response and can be rapidly heated to the crystallization point. When heated by a current pulse with a small amplitude and duration, the wire passes from the amorphous to microcrystalline state. The crystallization of the amorphous state may represent a slow or explosive process depending on the parameters of the pulse. In the latter case, the emission of electromagnetic waves (flash of light) and a sharp rise in the resistance are observed. The rate of propagation of the crystallization front in our experiments has been found to be about 1 m/s. |
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