Effect on Structural, Electrical and Temperature Sensing behavior of Neodymium Doped Bismuth Ferrite Effect on Structural, Electrical and Temperature Sensing behavior of Neodymium Doped Bismuth Ferrite

Effect on Structural, Electrical and Temperature Sensing behavior of Neodymium Doped Bismuth Ferrite

A. K. Sahu1, Priyambada Mallick2, S. K. Satpathy2*, Banarji Behera1,*   

1School of Physics, Sambalpur University, Jyoti Vihar, Burla-768019, Odisha, India

2 School of Applied Physics, Centurion University of Technology and Management, Jatni-752050, Odisha, India

Adv. Mater. Lett., 2021, 12 (7), 21071648

DOI: 10.5185/amlett.2021.071648

Publication Date (Web): Jun 12, 2021

E-mail: banarjibehera@gmail.com; kunuphy.2010@gmail.com

Abstract


Synthesis of polycrystalline samples of Bi1-xNdxFeO3 [x = 0.5, 0.6, 0.7 and 0.8] were demonstrated following solid-state reaction method at high temperature. The structural properties of the sample were confirmed through the X-ray diffraction technique. The dielectric study of the compounds was performed at different frequencies in the range of 100 Hz – 106 Hz for various temperatures. The non-Debye type of relaxation process confirmed from impedance analysis. The materials showed a negative temperature coefficient of resistance (NTCR) behavior at various temperatures and frequencies. AC conductivity of the materials with frequency at different temperatures satisfied the universal power law of Johnscher. Thermistor constant (β), sensitivity factor (α), and stability factor for all the samples were calculated and confirmed the characteristics of NTC thermistor.

Keywords

Solid-state reaction, XRD, electrical conductivity, thermistor constant, NTCR behavior.

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