Ba and Dy co-doped at A-site BiFeO3 ceramics have been successfully synthesized by a conventional solid state reaction technique. The analysis of crystal structure was done by X-ray diffraction (XRD) pattern. The Rietveld refined XRD pattern of prepared sample confirmed co-existence of Rhombohedral and Orthorhombic phases with R3c and Pnma space group, respectively. The low values of χ2, Rp and Rwp obtained from Rietveld refinement shows good agreement between observed and calculated values. There is suppression of growth of secondary phases due to doping of small sized Dy3+ in place of Bi3+ ion. It has been found that the values of dielectric constant and dielectric loss increase with increase in temperature at different frequency. This is because of increase in number of charge carriers and their mobilities due to the thermal activation. Frequency dependence of dielectric constant and dielectric loss is understood using Maxwell Wagner model.
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11 July 2019
DAE SOLID STATE PHYSICS SYMPOSIUM 2018
18–22 December 2018
Hisar, Haryana, India
Research Article|
July 11 2019
Crystal structure refinement and dielectric studies of Bi0.80-xBa0.20DyxFeO3 (x = 0.05, 0.10) multiferroic
Sonia Rani;
Sonia Rani
a)
Department of Physics, Guru Jambheshwar University of Science & Technology
, Hisar 125001, Haryana, India
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Sujata Sanghi;
Sujata Sanghi
Department of Physics, Guru Jambheshwar University of Science & Technology
, Hisar 125001, Haryana, India
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Jogender Singh;
Jogender Singh
Department of Physics, Guru Jambheshwar University of Science & Technology
, Hisar 125001, Haryana, India
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Tanvi Bhasin
Tanvi Bhasin
Department of Physics, Guru Jambheshwar University of Science & Technology
, Hisar 125001, Haryana, India
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a)
E-mail : sonihansi123@gmail.com
AIP Conf. Proc. 2115, 030524 (2019)
Citation
Sonia Rani, Sujata Sanghi, Jogender Singh, Tanvi Bhasin; Crystal structure refinement and dielectric studies of Bi0.80-xBa0.20DyxFeO3 (x = 0.05, 0.10) multiferroic. AIP Conf. Proc. 11 July 2019; 2115 (1): 030524. https://doi.org/10.1063/1.5113363
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