Preparation and characterization of (001) and (110)-oriented fe 1.4Ti0.6O3 films

Tatsuo Fujii, Tatsuya Sugano, Yusuke Takada, Makoto Nakanishi, Jun Takada

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

1 Citation (Scopus)

Abstract

Thin films of ilmenite-hematite solid solution, Fe1.4Ti 0.6O3 were prepared on α-A12O3 (001) and (110) single-crystalline substrates by reactive helicon plasma-sputtering technique. The oxide phases formed in the thin films and the degree of cation ordering in the ilmenite phase strongly depended on the preparation conditions. At the optimized preparation conditions, regardless of the substrate orientation, well-ordered Fe1.4Ti0.6O 3 films with R3 symmetry were epitaxially formed on the substrates. Large saturation magnetization at room temperature was observed in both (001)- and (110)-oriented films. The ordered Fe1.4Ti0.6O 3 films were ferrimagnetic semiconductors at room temperature. The (110)-oriented film had uniaxial in-plane magnetic and electric anisotropies, because Fe1.4Ti0.6O3 had a magnetic easy plane and predominant conduction in the (001) crystallographic plane. The differences in magnetization and electrical resistivity curves between the (001)- and (110)-oriented films indicated the anisotropic nature of Fe1.4Ti 0.6O3.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages7-12
Number of pages6
Volume1119
Publication statusPublished - 2008
EventNew Materials with High Spin Polarization and Their Applications - Boston, MA, United States
Duration: Dec 1 2008Dec 5 2008

Other

OtherNew Materials with High Spin Polarization and Their Applications
CountryUnited States
CityBoston, MA
Period12/1/0812/5/08

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ASJC Scopus subject areas

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

Cite this

Fujii, T., Sugano, T., Takada, Y., Nakanishi, M., & Takada, J. (2008). Preparation and characterization of (001) and (110)-oriented fe 1.4Ti0.6O3 films. In Materials Research Society Symposium Proceedings (Vol. 1119, pp. 7-12)