Altering Electrical Features of LuFeO3 Compound Via Ir Doping into Fe Sites

Cumhuriyet Science Journal

article

Özgür POLAT¹ 

[1] Brno University of Technology

关键词: Solid state reaction;    The loss tangent;    Complex impedance;    Non-Debye relaxation;    Resistivity;   

DOI  :  10.17776/csj.1037574

学科分类：工程和技术（综合）

来源: Cumhuriyet University

【 摘 要 】

Three ceramic compounds, LuFeO3, LuFe0.95Ir0.05O3, and LuFe0.90Ir0.10O3, were fabricated via using solid-state reaction technique. Scanning electron microscopy (SEM) analyses have shown the porous nature of the samples. The loss-tan(δ) of Ir substituted compounds are less than the undoped sample at frequencies > 105 Hz. The impedance study has revealed the Ir substituted samples have higher impedance values. Z″ and M″ vs frequency plots unveiled the existence of a non-Debye relaxation with short-range migration of carriers in the examined compounds. It has been shown 5 mol % Ir substituted specimen holds the maximum resistivity at 100 0C. Scanning electron microscopy has been utilized to study surface morphology.

【 授权许可】

CC BY-NC-ND