Magnetic stability of He{sup +} ion irradiated FeO+Fe{sub 3}N granular films

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3560119· OSTI ID:21560150

Sundararajan, J A; Zhang, D T; Qiang, Y ^[1]; Jiang, W; McCloy, J S ^[2]

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1. Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States)
2. Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 (United States)

Ion irradiation effects on the magnetic properties of FeO+Fe{sub 3}N (iron oxide/iron nitride) granular films are investigated in this study. The FeO+Fe{sub 3}N granular films were prepared using a nanocluster deposition system. The x-ray diffraction data confirm the presence of FeO and Fe{sub 3}N compounds in the prepared granular films. The saturation magnetization (30 emu/g), coercivity (87.9 Oe), and remanence (3.2 emu/g) of these granular films remain unaltered after irradiation with 2 MeV He{sup +} ions to a fluence of 3 x 10{sup 15} ions/cm{sup 2} at room temperature, indicating that the magnetic properties of these granular films are not affected in a highly radioactive environment. This unique property of the magnetic stability may provide promising applications for advanced data storage.

• OSTI ID: 21560150
• Journal Information: Journal of Applied Physics, Vol. 109, Issue 7; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: DOI: 10.1063/1.3560119; (c) 2011 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BEAMS
COERCIVE FORCE
DEPOSITION
GRANULAR MATERIALS
HELIUM IONS
IRON NITRIDES
IRON OXIDES
IRRADIATION
MAGNETIC PROPERTIES
MAGNETIZATION
MEV RANGE 01-10
NANOSTRUCTURES
PHYSICAL RADIATION EFFECTS
SATURATION
STABILITY
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
X-RAY DIFFRACTION
CHALCOGENIDES
CHARGED PARTICLES
COHERENT SCATTERING
DIFFRACTION
ENERGY RANGE
FILMS
IONS
IRON COMPOUNDS
MATERIALS
MEV RANGE
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
RADIATION EFFECTS
SCATTERING
TEMPERATURE RANGE
TRANSITION ELEMENT COMPOUNDS