Phase‐controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO 3 (001) substrates | Zendy

Wang Zhiguang | Zendy; Viswan Ravindranath | Zendy; Hu Bolin | Zendy; Harris V. G. | Zendy; Li JieFang | Zendy; Viehland D. | Zendy

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Phase‐controlled epitaxial growth of iron oxide thin films on MgO(001) and LaAlO 3 (001) substrates

Author(s) -

Wang Zhiguang,

Viswan Ravindranath,

Hu Bolin,

Harris V. G.,

Li JieFang,

Viehland D.

Publication year - 2012

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.201105458

Subject(s) - epitaxy , ferrimagnetism , materials science , atomic force microscopy , antiferromagnetism , magnetization , thin film , hysteresis , oxide , phase (matter) , analytical chemistry (journal) , diffraction , iron oxide , crystallography , nanotechnology , condensed matter physics , chemistry , metallurgy , layer (electronics) , magnetic field , optics , physics , organic chemistry , quantum mechanics , chromatography

We have deposited epitaxial iron oxide thin films on MgO(001) and LaAlO 3 (LAO)(001) substrates, resulting in different phase stabilities. Atomic force microscopy images revealed a smooth surface. Detailed X‐ray diffraction (XRD) measurements were performed to confirm the epitaxial growth and to analyze the atomic growth configuration. We found that (00l) oriented γ‐Fe 2 O 3 was the stable phase on MgO(001) substrates, whereas $ (1\bar 102) $ oriented α‐Fe 2 O 3 was stable on LAO(001). Magnetic hysteresis loop measurements revealed typical ferrimagnetic behavior for γ‐Fe 2 O 3 on MgO, whereas the magnetization of α‐Fe 2 O 3 on LAO was relatively small and consistent with an antiferromagnetic order. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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