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Title: The emergence of high room temperature in-plane and out-of-plane magnetostriction in polycrystalline CoFe2O4 film
Authors: Aireddy, Harinath
Keywords: Materials science
Nanoscience and technology
Physics
Issue Date: 24-Nov-2021
Publisher: Nature
Abstract: The polycrystalline CoFe2O4 (CFO) film on cantilever substrate of silicon was grown using pulsed laser deposition (PLD) method and investigated its in-plane and out-of-plane magnetostrictive strain at room temperature (300 K) using the indigenous optical Cantilever Beam Magnetometer (CBM). The film shows a high compressive magnetostrictive strain of ‒ 387 ppm and ‒ 708 ppm for in-plane and out-of-plane configurations, respectively. Considerably, the magnetostrictive strain loops (λ‒H) possess a certain degree of hysteresis with a symmetric butterfly shape. The origin of large compressive magnetostriction of CFO film is attributed to the non-180° domain wall motion followed by 90° domain rotation. The large values of saturation magnetostrictive strain make CFO film a suitable candidate in sensor design for different purposes.
URI: https://doi.org/10.1038/s41598-021-02421-w
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