Temperature dependence of ferroelectric and magnetic properties in polycrystalline BiFeO3 films

Hiroshi Naganuma, Yosuke Inoue, Soichiro Okamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A BiFeO3 film was fabricated by a chemical solution deposition (CSD) method onto the Pt/Ti/SiO2/Si(100) substrate followed by a post-deposition annealing at 973 K for 10 min in air. An x-ray diffraction measurement indicates the formation of the polycrystalline single phase of the BiFeO3 film. The high remanent polarization of 89 |j.C/cm2 was observed at 90 K together with the relatively low electric coercive field of 380 kV/cm, though the ferroelectric hysteresis loops could not be observed at room temperature due to the high leakage current density. Magnetic measurements indicate that the low remanence magnetization of around 2 emu/cm3 and the magnetic coercivity field of around 0.5 kOe were obtained at room temperature. These magnetic parameters increased around twice the value by decreasing the temperature to 100 K.

Original languageEnglish
Title of host publication2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF
Pages431-433
Number of pages3
DOIs
Publication statusPublished - 2007 Dec 1
Externally publishedYes
Event2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF - Nara-city, Japan
Duration: 2007 May 272007 May 31

Other

Other2007 16th IEEE International Symposium on the Applications of Ferroelectrics, ISAF
CountryJapan
CityNara-city
Period07/5/2707/5/31

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)

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