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Structural modifications and enhanced ferroelectric nature of NdFeO3–PbTiO3 composites by Anand Somvanshi; Ateed Ahmad; Shahid Husain; Samiya Manzoor; Aref A. A. Qahtan; Naima Zarrin; Mehroosh Fatema; Wasi Khan is a Materials Science article available to read on EtoBox.

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In this contribution, we reported our findings on NdFeO3-PbTiO3 composite system synthesized by conventional solidstate reaction route. The cell parameters, density and bond lengths (Fe-O I , Fe-O II ) are determined by Rietveld refinement of X-ray diffraction data. Phase purity of the system was further confirmed through Fourier transform infrared (FTIR) and Raman spectroscopy techniques. The FTIR spectra reflected two important absorption bands around 656-505 cm -1 and 486-412 cm -1 , corresponding to stretching (ν 1 ) and bending (ν 2 ) vibrational modes. The stretching vibrational mode (ν 1 ) represents the absorbed IR energy in metal oxide (M-O) bonds. If the Raman spectra are related to two different symmetries, this includes the presence of two different phases in the sample. Thus, the phase purity is absent. The blue shift of Raman active mode at 720 cm -1 in pristine sample suggests that the increase in PbTiO 3 concentration enhances the structural distortion in the system. The particle sizes as estimated using SEM micrographs were found to be in the range 147-250 nm. The ferroelectric behavior of NdFeO 3 has been improved drastically with increase in PbTiO 3 concentration

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Author

Anand Somvanshi; Ateed Ahmad; Shahid Husain; Samiya Manzoor; Aref A. A. Qahtan; Naima Zarrin; Mehroosh Fatema; Wasi Khan

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)