Impact of ultrathin transition metal buffer layers on Fe{sub 3}O{sub 4} thin films

Journal Article · Sat May 15 00:00:00 EDT 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3350910· OSTI ID:21476211

Jayathilaka, P B; Bauer, C A; Williams, D V; Miller, Casey W ^[1]; Monti, M C; Markert, J T ^[2]

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1. Department of Physics, Center for Integrated Functional Materials, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620 (United States)
2. Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712 (United States)

3000 A Fe{sub 3}O{sub 4} (magnetite) thin films were simultaneously grown on (001) MgO single crystal substrates with and without 30 A buffer layers of Fe, Cr, Mo, and Nb. For all samples, the Verwey transition temperature (T{sub V}) occurs between 119 and 125 K, indicating good oxygen stoichiometry. We observe highly oriented (001) Fe{sub 3}O{sub 4} with Mo and no buffer layer, reduced (001) texture with Nb and Fe, and polycrystalline growth with Cr. Mo, Cr, and unbuffered magnetite show typical magnetic behavior, whereas Nb and Fe buffers lead to anomalous magnetic properties that may be due to interfacial reactivity.

• OSTI ID: 21476211
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 9 Vol. 107; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CHROMIUM
CRYSTAL GROWTH
CRYSTALS
DEPOSITION
ELEMENTS
FERROMAGNETIC MATERIALS
FILMS
IRON
IRON COMPOUNDS
IRON OXIDES
LAYERS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
METALS
MOLYBDENUM
MONOCRYSTALS
NIOBIUM
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLYCRYSTALS
REFRACTORY METALS
SPUTTERING
STOICHIOMETRY
SUBSTRATES
SURFACE COATING
TEXTURE
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TRANSITION TEMPERATURE