• A logical explanation of structurally unfit X-ray diffraction peaks in nanoferroelectrics

• # Fulltext

https://www.ias.ac.in/article/fulltext/boms/041/01/0024

• # Keywords

X-ray diffraction; domains; ferroelectrics; nanoparticles; transmission electron microscopy.

• # Abstract

In the present paper we suggest the cause and solution of some unidentified X-ray diffraction (XRD) peaks inferroelectric nanoparticles. Indeed, a relationship between the structurally unfit XRD peaks and domains in the ferroelectricnanoparticles is suggested. BaTiO$_3$, PbTiO$_3$ and Sr$_{0.5}$Ba$_{0.5}$Nb$_2$O$_6$ nanoparticles were used as trial samples. Diffraction of X-rays by domain grating was considered for the occurrence of unfit peaks. It was found that domain widths corresponding to some structurally unfit minor peaks of all three trail samples show good agreement to the values estimated from the transmission electron microscopy images. The study can be used to estimate the width of nanodomains (within 5–10 $\AA$) in ferroelectric nanoparticles. Thus, the study seems to be highly important for the advancement of nanoferroelectricity.

• # Author Affiliations

1. Department of Physics, Institute of Science, Nagpur 440001, India
2. Department of Physics, S.D.S.M. College, Palghar 401404, India
3. Department of Physics, Vidyabharti College, Seloo 442104, India
4. Department of Physics, R.T.M. Nagpur University, Nagpur 440033, India

• # Bulletin of Materials Science

Volume 44, 2021
All articles
Continuous Article Publishing mode

• # Dr Shanti Swarup Bhatnagar for Science and Technology

Posted on October 12, 2020

Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020