Synthesis and characterisation of nanostructured Co-Pt magnetic films electrodeposited from tartrate-stabilised chloride baths

Teh, Seohhian and Johan, Mohd Rafie and Yaacob, Iskandar Idris (2014) Synthesis and characterisation of nanostructured Co-Pt magnetic films electrodeposited from tartrate-stabilised chloride baths. Materials Research Innovations, 18. S6-286-S6-290. ISSN 1432-8917 E-ISSN 1433-075X

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Abstract

Cobalt-platinum (Co-Pt) nanocrystalline alloy films were electrodeposited using a novel stable single-bath system containing a complex forming additive which stabilised the Co+2 ions and enhanced codeposition with platinum complexes. The compositions of the electrodeposits was controlled by adjusting the metal ions ratio in the electrolytic bath and by varying the current density. X-ray diffraction results showed that the as-deposited films contained face-centred cubic CoPt3 phase and the calculated crystallite sizes were in nanoscale dimension in a range of 3-10 nm. Scanning electron microscopy results showed formation of granules and clusters. Atomic force microscopy and infinite focus microscopy results showed granular surface morphology and approximately similar surface roughness value on Co43-Pt57 film. Magnetic force microscopy characterisation on Co43-Pt57 showed existence of correlation between magnetic force and surface topography. The saturation magnetisation values of as-synthesised nanostructured Co-Pt films increased with increasing of Co content.

Item Type:	Article (Journal)
Additional Information:	6524/58535
Uncontrolled Keywords:	Co-Pt; Electrodeposition; Magnetic films; Magnetic force microscopy; Nanocrystalline
Subjects:	Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Prof. Dr. Iskandar Idris Yaacob
Date Deposited:	26 Sep 2017 13:37
Last Modified:	26 Sep 2017 13:37
URI:	http://irep.iium.edu.my/id/eprint/58535

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