Synthesis, optical and magnetic behavior of (BiFeO3)1− x(α-Fe2O3)x nanocomposites

H. Baqiah, Z. A. Talib, A. H. Shaari, N. Tamchek, Noor Baa`Yah Ibrahim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

(BiFeO3)1− x(α-Fe2O3)x nanocomposites were synthesized from dried gels of BiFeO3 and α-Fe2O3. Samples with x = (0.00 (BiFeO3), 0.25, 0.50 and 1.00 (α-Fe2O3)) were studied using X-rays diffractions (XRD), UV–vis spectroscopy, photoluminescence spectroscopy (PL), electron spin resonance (ESR) and vibrating sample magnetometer (VSM). Amounts of α-Fe2O3 phase were 23 and 35% for samples x = 0.25 and 0.50, respectively. Microstrain of BiFeO3 phase tended to decrease with increasing α-Fe2O3. Optical band gap reduced from 2.42 eV for BiFeO3 to 2.35 eV for sample x = 0.25 and then increased to 2.56 eV for sample x = 0.50. From PL, intensity of near band emission peak of BiFeO3 increased with increasing α-Fe2O3 content. From ESR and VSM, the g-value and magnetization saturation were enhanced with embedding of α-Fe2O3 into BiFeO3.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume231
DOIs
Publication statusPublished - 1 May 2018

Fingerprint

Photoluminescence spectroscopy
Magnetometers
Paramagnetic resonance
Nanocomposites
nanocomposites
Optical band gaps
Saturation magnetization
synthesis
Gels
Spectroscopy
X ray diffraction
magnetometers
electron paramagnetic resonance
spectroscopy
photoluminescence
embedding
gels
saturation
magnetization
diffraction

Keywords

  • Band gap
  • BiFeO
  • Magnetization
  • Microstrain
  • Nanocomposite
  • α-FeO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Synthesis, optical and magnetic behavior of (BiFeO3)1− x(α-Fe2O3)x nanocomposites. / Baqiah, H.; Talib, Z. A.; Shaari, A. H.; Tamchek, N.; Ibrahim, Noor Baa`Yah.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 231, 01.05.2018, p. 5-10.

Research output: Contribution to journalArticle

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AU - Tamchek, N.

AU - Ibrahim, Noor Baa`Yah

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