Structural and Magnetic Properties of Amorphous Tb-Dy-Fe-Co Thin Films

Basumatary, Himalay and Jeyaramane, Arout Chelvane and Kamat, SV and Ranjan, Rajeev (2016) Structural and Magnetic Properties of Amorphous Tb-Dy-Fe-Co Thin Films. In: JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 29 (3). pp. 863-867.

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Abstract

This paper reports the effect of film thickness (50, 200, 400 and 800 nm) on the structural and magnetic properties of amorphous Tb-Dy-Fe-Co alloy thin films. All the films are found to exhibit perpendicular magnetic anisotropy (PMA) irrespective of the film thickness. The PMA is found to decrease with increase in film thickness due to the decrease in the magnetic texture and anisotropy energy. While the coercivity deduced from the out-of-plane magnetization curve increases with increasing film thickness, the in-plane coercivity exhibits weak thickness dependence. The irreversibility point in the thermo-magnetic curves obtained from field-cooled and zero-field-cooled measurements along the out-of-plane direction is found to shift towards higher temperature compared to the measurements in in-plane directions, indicating the presence of strong PMA.

Item Type:	Journal Article
Publication:	JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
Publisher:	SPRINGER
Additional Information:	Copy right for this article belongs to the SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
Keywords:	Magnetic thin film; Magnetic anisotropy; Microstructure
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	02 Apr 2016 07:33
Last Modified:	02 Apr 2016 07:33
URI:	http://eprints.iisc.ac.in/id/eprint/53543

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