Tailoring magnetic domains in Gd-Fe thin films

Talapatra, A and Chelvane, J Arout and Mohanty, Jyoti Ranjan (2018) Tailoring magnetic domains in Gd-Fe thin films. AIP Advances, 8 (5). 056327. ISSN 2158-3226

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This paper presents the global modification of magnetic domains and magnetic properties in amorphous Gd19Fe81 thin films with rapid thermal processing at two distinct temperatures (250oC and 450oC), and with different time intervals viz., 2, 5, 10 and 20 minutes. 100 nm thick as-prepared films display nano-scale meandering stripe domains with high magnetic phase contrast which is the signature of perpendicular magnetic anisotropy. The films processed at 250oC for various time intervals show successive reduction in magnetic phase contrast and domain size. The domain pattern completely disappeared, and topography dominated mixed magnetic phase has been obtained for the films processed at 450oC for time intervals greater than 2 minutes. The magnetization measurements indicate the reduction in perpendicular magnetic anisotropy with increase in saturation magnetization for all the rapid thermal processed films. The experimental outputs have been used to simulate the domain pattern. Reduction in uniaxial anisotropy along with the increase in saturation magnetization successfully explain the experimental trend of decrease in domain size and magnetic contrast.

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IITH Creators:
IITH CreatorsORCiD
Mohanty, Jyoti RanjanUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Magnetism, Thin films, Transition, Semiconductor device fabrication, Atomic force microscopy
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 23 Jan 2018 10:18
Last Modified: 23 Jan 2018 10:18
URI: http://raiith.iith.ac.in/id/eprint/3744
Publisher URL: http://doi.org/10.1063/1.5006413
OA policy: http://www.sherpa.ac.uk/romeo/issn/2158-3226/
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