R&D: Assessment of X-type Fe2CoAl Nanowires Synthesized by Electrospinning Route for Advanced Magnetic Applications

Journal of Alloys and Compounds has published an article written by Dinesh Subba, and Ananthakrishnan Srinivasan, Department of Physics, Indian Institute of Technology Guwahati, Guwahati 781039, India.

Abstract: “Phase-pure Fe₂CoAl nanowires with X-type Heusler alloy structure were synthesized by electrospinning route, with average diameter of 256 ± 2 nm. High degree of crystalline order observed experimentally in these polycrystalline nanowires was also validated by ab initio calculations. Composition analysis confirmed the near-stoichiometric composition of the Heusler compounds. Magnetic measurements demonstrated ferromagnetic behavior with a high saturation magnetization of 4.83 µ_B/f.u. at 5 K, which is close to the theoretically estimated value. The nanowires exhibited a high effective anisotropy constant of ∼ 9.22 × 10⁶ erg/cc at 5 K and a spin polarization value of ∼ 60 %. These findings establish Fe₂CoAl nanowires as promising candidates for high-density magnetic recording and next-generation information storage devices.“