Magnetic and electrical characterization of multiferroic BiFeO3

Authors

  • Janina Rhea A. Lazo Materials Science and Engineering Program, University of the Philippines Diliman
  • Klarisse R. Gepilano Materials Science and Engineering Program, University of the Philippines Diliman
  • Marvin T. Laguerta Materials Science and Engineering Program, University of the Philippines Diliman
  • Roland V. Sarmago National Institute of Physics, University of the Philippines Diliman

Abstract

Bismuth ferrite was synthesized via classic solid state reaction at 800°C. XRD results show high purity, highly crystalline BiFeO3 with distorted rhombohedral perovskite structure. An alternating capacitive-inductive behavior is seen in the Smith chart. The synthesized BiFeO3 was found to have high dielectric constants, 70-100 at frequencies 300 kHz to 400 MHz, and 200-600 at higher frequencies before reaching its self-resonance frequency of 600 MHz. The self-resonance frequency is quite low compared with other types of capacitors which could be due to the high residual inductive effect of the bismuth ferrite. Inductive Q factors at higher frequencies reached a maximum of 40. These high dielectric constants and high inductive effects of the bismuth ferrite sample are manifestations of its being a simultaneous perovskite ferroelectric and antiferromagnetic.

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Issue

Article ID

SPP-2009-PA-41

Section

Poster Session PA

Published

2009-10-28

How to Cite

[1]
JRA Lazo, KR Gepilano, MT Laguerta, and RV Sarmago, Magnetic and electrical characterization of multiferroic BiFeO3, Proceedings of the Samahang Pisika ng Pilipinas 27, SPP-2009-PA-41 (2009). URL: https://proceedings.spp-online.org/article/view/SPP-2009-PA-41.