Threshold electrical switching in As45Te55-xInx and As50Te50-xInx glasses |
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| Authors: | JT Devaraju BH Sharmila S Asokan KV Acharya |
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| Institution: | (1) Department of Electronic Science, Bangalore University, Bangalore 560 056, India, IN;(2) Department of Instrumentation, Indian Institute of Science, Bangalore 560 012, India, IN |
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| Abstract: | The electrical switching behaviour of As45Te55-xInx (5≤x≤15) and As50Te50-xInx (2.5≤x≤11.5) has been studied over a wide range of compositions. These glasses are found to exhibit threshold switching.
The composition dependence of switching voltage (Vt) has been found to exhibit a change in slope and a local minimum at compositions x=10 and 12.5 for As45Te55-xInx and x=7.5 and 10.8 for As50Te50-xInx, respectively. The slope change in Vt verses x and the local minimum have been identified using two network topological effects, namely the rigidity percolation
threshold and the chemical threshold.
Received: 23 August 2001 / Accepted: 27 August 2001 / Published online: 11 February 2002 |
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| Keywords: | PACS: 61 43 Fs 72 80 Ng 73 61 G 72 20 84 32 D |
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