The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires

Rotarescu, Cristian; Corodeanu, Sorin; Hlenschi, Costică; Stoian, George; Chiriac, Horia; Lupu, Nicoleta; Óvári, Tibor-Adrian

doi:10.3390/ma17051141

Open AccessArticle

The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires

by

Cristian Rotarescu

^*

,

Sorin Corodeanu

,

Costică Hlenschi

,

George Stoian

,

Horia Chiriac

,

Nicoleta Lupu

and

Tibor-Adrian Óvári

^*

National Institute of Research and Development for Technical Physics, 47 Mangeron Boulevard, 700050 Iași, Romania

^*

Authors to whom correspondence should be addressed.

Materials 2024, 17(5), 1141; https://doi.org/10.3390/ma17051141

Submission received: 4 December 2023 / Revised: 26 February 2024 / Accepted: 27 February 2024 / Published: 29 February 2024

(This article belongs to the Special Issue Nanosized and Nanostructured Magnetic Materials: Experimental, Theoretical, and Computational Investigations)

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Abstract

In this paper, we report for the first time on the theoretical and experimental investigation of Fe_77.5Si_7.5B₁₅ amorphous glass-coated nanowires by analyzing samples with the same diameters in both cases. The hysteresis curves, the dependence of the switching field values on nanowire dimensions, and the effect of the magnetoelastic anisotropy on the magnetization processes were analyzed and interpreted to explain the magnetization reversal in highly magnetostrictive amorphous nanowires prepared in cylindrical shape by rapid quenching from the melt. All the measured samples were found to be magnetically bistable, being characterized by rectangular hysteresis loops. The most important feature of the study is the inclusion of the magnetoelastic anisotropy term that originates in the specific production process of these amorphous nanowires. The results show that the switching field decreases when the nanowire diameter increases and this effect is due to the reduction in anisotropy and in the intrinsic mechanical stresses. Moreover, the obtained results reveal the importance of factors such as geometry and magnetoelastic anisotropy for the experimental design of cylindrical amorphous nanowires for multiple applications in miniaturized devices, like micro and nanosensors.

Keywords: magnetic anisotropy; cylindrical amorphous nanowires; switching field; micromagnetic modelling

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MDPI and ACS Style

Rotarescu, C.; Corodeanu, S.; Hlenschi, C.; Stoian, G.; Chiriac, H.; Lupu, N.; Óvári, T.-A. The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires. Materials 2024, 17, 1141. https://doi.org/10.3390/ma17051141

AMA Style

Rotarescu C, Corodeanu S, Hlenschi C, Stoian G, Chiriac H, Lupu N, Óvári T-A. The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires. Materials. 2024; 17(5):1141. https://doi.org/10.3390/ma17051141

Chicago/Turabian Style

Rotarescu, Cristian, Sorin Corodeanu, Costică Hlenschi, George Stoian, Horia Chiriac, Nicoleta Lupu, and Tibor-Adrian Óvári. 2024. "The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires" Materials 17, no. 5: 1141. https://doi.org/10.3390/ma17051141

APA Style

Rotarescu, C., Corodeanu, S., Hlenschi, C., Stoian, G., Chiriac, H., Lupu, N., & Óvári, T.-A. (2024). The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires. Materials, 17(5), 1141. https://doi.org/10.3390/ma17051141

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The Effect of Magnetoelastic Anisotropy on the Magnetization Processes in Rapidly Quenched Amorphous Nanowires

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