Transport Studies of Copper Iodide

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概要

• 論文の詳細を見る

• Measurements of thermoelectric power (Θ) and electrical conductivity (σ) of copper iodide, which becomes superionic conductor above 642 K, have been reported both in α and β phases. A sharp change in magnitude of thermoelectric power has been observed at 642 K corresponding to β to α phase transition. The result may be expressed by the relations β-CuI, Θ=-(0.20±0.02)(10^3/T)+(0.ll〓0.02)mV/K300-520 K α-Cul, Θ=-(0.098±0.0O5)(10^3/K)+(0.417〓0.005)=mV/K642-850 K. From conductivity data the activation energy (E_a) for conduction in α and β phases of CuI is found to be 0.13 and 0.368 eV respectively and heat of transport (q_<Cu>^+) of cationically disordered Cu^+ ion in α-phase and interstitial Cu^+ ion in β-phase have been found to be 0.098 and (0.20-h/2) eV respectively; h being the heat of formation of Frenckel defect pair in β-phase. It has been shown that the result on α-CuI supports the extended lattice gas model of superionic conductors.

• 社団法人応用物理学会の論文
• 1981-09-05

著者

• Lal H.

  Department Of Physics University Of Gorakhpur

• VERMA B.

  Department of Physics, University of Gorakhpur

• PRATAP V.

  Department of Physics, University of Gorakhpur

• Pratap V.

  Department Of Physics University Of Gorakhpur

• Verma B.

  Department Of Physics University Of Gorakhpur

関連論文

• Magnetic Susceptibility, Electrical Conductivity and Dielectric Constant of Eu_2(WO_4)_3 Single Crystals
• Transport Studies of Copper Iodide

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