@article{HONG2020, 
author = {Yang HONG and Jun LI and Han BAI and Zhenjia SONG and Ming WANG and Zhongxiang ZHOU},
title = {Effect of octahedron tilt on the structure and magnetic properties of bismuth ferrite},
year = {2020},
journal = {Journal of Advanced Ceramics},
volume = {9},
number = {5},
pages = {641-646},
keywords = {bismuth ferrite (BiFeO3), magnetism, octahedron tilt, Raman spectrum, electromagnetic characteristics},
url = {https://www.sciopen.com/article/10.1007/s40145-020-0398-1},
doi = {10.1007/s40145-020-0398-1},
abstract = {Multiferroic BiFeO3-based ceramics were synthesized using the rapid liquid-phase sintering method. The rare-earth ion (Sm3+, Gd3+, Y3+) doping causes structural distortion without changing the intrinsic rhombohedral perovskite structure. Raman analysis shows that the effect of doping on E modes is greater than A1 modes, and the microstructure of FeO6 octahedron can be regulated by ion doping. A-site trivalent ion doped ceramics exhibit improved magnetism compared with pure BiFeO3 ceramic, which originated from the suppressed spiral spin structure of Fe ions. The tilt of FeO6 octahedron as a typical structure instability causes the anomalous change of the imaginary part of permittivity at high frequency, and doped ceramics exhibit natural resonance around 16-17 GHz.}
}