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

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

Preparation and characterization of (001) and (110)-oriented fe _1.4Ti_0.6O₃ films

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Thin films of ilmenite-hematite solid solution, Fe_1.4Ti _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 Fe_1.4Ti_0.6O 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 Fe_1.4Ti_0.6O ₃ films were ferrimagnetic semiconductors at room temperature. The (110)-oriented film had uniaxial in-plane magnetic and electric anisotropies, because Fe_1.4Ti_0.6O₃ 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 Fe_1.4Ti _0.6O₃.

Original language	English
Title of host publication	Materials Research Society Symposium Proceedings - New Materials with High Spin Polarization and Their Applications
Pages	7-12
Number of pages	6
Publication status	Published - Dec 1 2008
Event	New Materials with High Spin Polarization and Their Applications - Boston, MA, United States Duration: Dec 1 2008 → Dec 5 2008

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1119
ISSN (Print)	0272-9172

Other

Other	New Materials with High Spin Polarization and Their Applications
Country/Territory	United States
City	Boston, MA
Period	12/1/08 → 12/5/08

ASJC Scopus subject areas

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

Cite this

Preparation and characterization of (001) and (110)-oriented fe _1.4Ti_0.6O₃ films. / Fujii, Tatsuo; Sugano, Tatsuya; Takada, Yusuke et al.

Materials Research Society Symposium Proceedings - New Materials with High Spin Polarization and Their Applications. 2008. p. 7-12 (Materials Research Society Symposium Proceedings; Vol. 1119).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Fujii, T, Sugano, T, Takada, Y, Nakanishi, M & Takada, J 2008, Preparation and characterization of (001) and (110)-oriented fe _1.4Ti_0.6O₃ films. in Materials Research Society Symposium Proceedings - New Materials with High Spin Polarization and Their Applications. Materials Research Society Symposium Proceedings, vol. 1119, pp. 7-12, New Materials with High Spin Polarization and Their Applications, Boston, MA, United States, 12/1/08.

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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.",

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AU - Fujii, Tatsuo

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AU - Takada, Jun

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N2 - 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.

AB - 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.

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