Abstract
Abstract
The microwave properties of multiferroic Bismuth Ferrite have been widely studied and focus has been placed on the improvement of microwave absorption, impedance matching, effective bandwidth through doping with suitable elements, and formation of nanostructures. In this work, Barium and Yttrium co-doping at the Bi site of BiFeO3 nanoparticles (BayBi1-x-yYxFeO3) were observed to be effective in enhancing the dielectric and magnetic properties of the sample with x = 0.03 and y = 0.1. A minimum reflection loss of −61.7 dB was achieved in the sample for a composite absorber length of 7.5 mm attributed to the best balance observed between dielectric loss (tanδ
ε
) and magnetic loss (tanδ
μ
) based on the match equation, tanδ
ε
= tanδ
μ
. The best impedance matching observed in this sample also supports the observed high microwave absorption required for practical application as microwave absorption material.
Funder
S. N. Bose National Centre for Basic Sciences
Subject
Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics