Static and dynamic magnetic properties of epitaxial Co{sub 2}FeAl Heusler alloy thin films

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

DOI:https://doi.org/10.1063/1.3549581· OSTI ID:21560133

Ortiz, G ^[1]; ONERA, Toulouse ^[2]; Gabor, M S ^[3]; Petrisor, T Jr ^[4]; Boust, F; Issac, F ^[5]; Tiusan, C; Hehn, M ^[3]; Bobo, J F ^[1]

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1. NMH-CEMES, CNRS, Toulouse (France)
2. France
3. Institut Jean Lamour, P2M, CNRS-Nancy University, Nancy (France)
4. Technical University of Cluj Napoca, Materials Science Laboratory, Cluj (Romania)
5. ONERA, Toulouse (France)

Structural and magnetic properties of epitaxial Co{sub 2}FeAl Heusler alloy thin films were investigated. Films were deposited on single crystal MgO (001XS) substrates at room temperature, followed by an annealing process at 600 deg. C. MgO and Cr buffer layers were introduced in order to enhance crystalline quality, and improve magnetic properties. Structural analyses indicate that samples have grown in the B2 ordered epitaxial structure. VSM measures show that the MgO buffered sample displays a magnetization saturation of 1010 {+-} 30 emu/cm{sup 3}, and Cr buffered sample displays a magnetization saturation of 1032 {+-} 40 emu/cm{sup 3}. Damping factor was studied by strip-line ferromagnetic resonance measures. We observed a maximum value for the MgO buffered sample of about 8.5 x 10{sup -3}, and a minimum value of 3.8 x 10{sup -3} for the Cr buffered one.

• OSTI ID: 21560133
• 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: 10.1063/1.3549581; (c) 2011 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANNEALING
BUFFERS
COBALT ALLOYS
CRYSTAL STRUCTURE
DAMPING
EPITAXY
FERROMAGNETIC RESONANCE
HEUSLER ALLOYS
IRON ALLOYS
LAYERS
MAGNESIUM OXIDES
MAGNETIC PROPERTIES
MAGNETIZATION
MONOCRYSTALS
SATURATION
SUBSTRATES
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
VIBRATING SAMPLE MAGNETOMETERS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CHALCOGENIDES
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL GROWTH METHODS
CRYSTALS
FILMS
HEAT TREATMENTS
MAGNESIUM COMPOUNDS
MAGNETIC RESONANCE
MAGNETOMETERS
MANGANESE ALLOYS
MEASURING INSTRUMENTS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESONANCE
TEMPERATURE RANGE
TRANSITION ELEMENT ALLOYS