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Title: Meyer Neldel rule and dc conduction in Se85-xTe15Gex glasses
Authors: Kumar, Anil
Lal, Manohar
Sharma, Kanchan
Tripathi, S K
Goyal, Navdeep
Keywords: dc Conductivity;Activation energy;Chalcogenide glasses;Meyer-Neldel rule
Issue Date: Apr-2013
Publisher: NISCAIR-CSIR, India
Abstract: The temperature dependence of dc conductivity of Se85-xTe15Gex (x=0, 2, 6, 10, 15) chalcogenide glasses in the temperature range 273-333 K, has been reported. The dc conductivity varies exponentially with temperature for all compositions. The log σdc versus 1000/T plots are almost straight lines in whole studied temperature range indicating a singly activated phenomenon with single activation energy. Meyer-Neldel rule between pre-exponential factor and activation energy has been observed. Meyer-Neldel characteristic energy (EMN) and σ00 come out to be 40.67 meV and 3.78*10-6 S cm-1, respectively.Both values lie in the range predicted by Shimakawa and Abdul-Waheb for chalcogenide glasses.
Page(s): 251-253
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.51(04) [April 2013]

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