Soft Ferromagnetic Co2MnAl Full Heusler Alloy Particles with High Curie Temperature for Spintronics Device Applications

Chellakumar, R and Malar, TSD and Rawther, AN and Ravichandran, K (2023) Soft Ferromagnetic Co2MnAl Full Heusler Alloy Particles with High Curie Temperature for Spintronics Device Applications. In: Journal of Superconductivity and Novel Magnetism .

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Abstract

Co2MnAl Heusler alloy nanoparticle was synthesized by a facile solid-state reaction method. The structural, morphological, thermal, thermoelectrical, and magnetic properties of Co2MnAl full Heusler alloy have been investigated. The X-ray diffraction data indicates the alloy particles are polycrystalline in nature with a cubic crystal structure. The prepared alloy was thermally stable up to 705 °C, and it is confirmed through thermogravimetric analysis and differential thermal analysis. The temperature-dependent Seebeck coefficient and Hall measurement exhibit the negative carrier concentration; it shows the prepared alloy was an n-type semiconducting nature. The vibrating sample magnetometer data indicated that the alloy particle exhibits soft ferromagnetic nature with low coercivity and a high Curie temperature of 736 K. The Co2MnAl full Heusler alloy will be suitable for spintronics device applications, as it shows high magnetic moment with low coercivity. These results unambiguously indicate that it possesses great advantage for implementation into giant magnetoresistance or tunneling magnetoresistance for next-generation spintronics device application. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

Item Type:	Journal Article
Publication:	Journal of Superconductivity and Novel Magnetism
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer.
Keywords:	Aluminum alloys; Cobalt alloys; Coercive force; Crystal structure; Curie temperature; Differential thermal analysis; Ferromagnetic materials; Ferromagnetism; Magnetic moments; Manganese alloys; Polycrystalline materials; Solid state reactions; Synthesis (chemical); Ternary alloys; Thermogravimetric analysis, Alloy nanoparticle; Alloy particles; Device application; Ferromagnetics; Full Heusler alloy; Half-metallic; Heusler alloys; High Curie temperature; Soft ferromagnetic; Spintronics device, Nanoparticles
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	02 Feb 2023 10:24
Last Modified:	02 Feb 2023 10:24
URI:	https://eprints.iisc.ac.in/id/eprint/79786

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