Dielectric study of La_2-xTb_xMo₂O₉ (x=0.1, 0.2, 0.5) oxygen ion conductor

Gyati Tachang Tado, Diptimayee Tripathy, Amarjyoti Saikia, Arvind Pandey

Department of Physics, North Eastern Regional Institute of Science and Technology, Nirjuli, 791109, Arunachal Pradesh, India.

Carbon - Science and Technology 11/2 (2019) 78 - 84.

© Applied Science Innovations Private Limited, India.

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Keywords: Solid electrolyte, ionic conductor, dielectric loss, electric modulus, relaxation mechanism

Abstract: La₂Mo₂O₉ based Tb-doped compound, La_2-xTb_xMo₂O₉ (x=0.1, 0.2, 0.5), was synthesized and characterised by EIS studies. The frequency and temperature dependent dielectric, electric modulus and ac conductivity studies have been done. Different formalisms have been used to understand relaxation mechanism in our compound. The conductivity in these specimens appears to be due to mobility of oxygen ions.