Investigation of cellular microstructure and enhanced coercivity in sputtered Sm{sub 2}(CoCuFeZr){sub 17} film

Journal Article · Fri Mar 14 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4867916· OSTI ID:22277901

Bhatt, Ranu; Schütz, G. ^[1]; Bhatt, Pramod ^[2]

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1. Max Planck Institute for Intelligent Systems (formerly Max Planck Institute for Metals Research), Heisenbergstr. 3, 70569 Stuttgart (Germany)
2. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)

We have investigated the effect of annealing temperature on the microstructure and magnetic properties of Sm{sub 2}(CoCuFeZr){sub 17} films prepared using ion beam sputtering at room temperature. The as-deposited film shows randomly oriented polycrystalline grains and exhibits small coercivity (H{sub C}) of 0.04 T at room temperature. Post annealing of these films at 700 °C under Ar atmosphere shows significant changes in the microstructure transforming it to the development of cellular growth, concomitant with enhanced coercivity up to 1.3 T. The enhanced coercivity is explained using the domain wall pinning mechanism.

• OSTI ID: 22277901
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNEALING
COBALT ALLOYS
COERCIVE FORCE
COPPER ALLOYS
INTERMETALLIC COMPOUNDS
ION BEAMS
IRON ALLOYS
MAGNETIC FLUX
MAGNETIC PROPERTIES
MICROSTRUCTURE
POLYCRYSTALS
SAMARIUM ALLOYS
SPUTTERING
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
THIN FILMS
ZIRCONIUM ALLOYS