Epitaxial growth and magnetic properties of Fe{sub 3}O{sub 4} films on TiN buffered Si(001), Si(110), and Si(111) substrates

Journal Article · Mon Aug 30 04:00:00 EDT 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3484278· OSTI ID:21466913

Hua, Xiang; Fengyuan, Shi; Voyles, Paul M; Chang, Y Austin ^[1]; Rzchowski, Mark S ^[2]

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1. Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
2. Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

Epitaxial Fe{sub 3}O{sub 4} thin films were grown on TiN buffered Si(001), Si(110), and Si(111) substrates by dc reactive sputtering deposition. Both Fe{sub 3}O{sub 4} films and TiN buffer are fully epitaxial when grown at substrate temperatures above 150 deg. C, with textured single phase Fe{sub 3}O{sub 4} resulting from room temperature growth. The initial sputtered Fe{sub 3}O{sub 4} formed nuclei islands and then coalesced to epitaxial columnar grains with increasing film thickness. The magnetization decreases and the coercive field increases with decreasing film thickness. There is no in-plane magnetic anisotropy of epitaxial Fe{sub 3}O{sub 4}(001) on Si(001) but Fe{sub 3}O{sub 4} films grown on Si(110) and Si(111) substrates show uniaxial in-plane magnetic anisotropy.

• OSTI ID: 21466913
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 9 Vol. 97; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
CHALCOGENIDES
COERCIVE FORCE
CRYSTAL GROWTH
CRYSTAL GROWTH METHODS
DEPOSITION
ELEMENTS
EPITAXY
FILMS
IRON COMPOUNDS
IRON OXIDES
LAYERS
MAGNETIC PROPERTIES
MAGNETIZATION
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
SEMIMETALS
SILICON
SPUTTERING
SUBSTRATES
SURFACES
TEMPERATURE DEPENDENCE
TEXTURE
THIN FILMS
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
VAPOR PHASE EPITAXY