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arXiv · 2109.12704

Magnetic and magnetocaloric properties of melt-extracted Mn1.26Fe0.60P0.48Si0.52 microwires

Lin Luo·Hongxian Shen·Sida Jiang·Ying Bao·Yongjiang Huang·Shu Guo·Ze Li·Nguyen Thi My Duc·Jianfei Sun·Manh-Huong Phan
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Abstract

The polycrystalline Mn1.26Fe0.60P0.48Si0.52 microwires were successfully fabricated for the first time by the melt-extraction technique, and their magnetic and magnetocaloric properties were investigated systematically. The structural analysis shows that the microwires possess a hexagonal phase with Fe2P type, with a homogeneous composition distribution. Magnetometry measurements show that the microwires undergo a weak first-order magnetic phase transition at a temperature of 142 K. The maximum magnetic entropy change of the microwires reaches 4.64 Jkg-1K-1 for a field change of 5 T. These low-cost Mn1.26Fe0.60P0.48Si0.52 microwires are promising for active magnetic refrigeration in the liquid nitrogen temperature range.

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Lin Luo, Hongxian Shen, Sida Jiang, Ying Bao, Yongjiang Huang, Shu Guo, Ze Li, Nguyen Thi My Duc, Jianfei Sun, Manh-Huong Phan. 2021-09-26. Magnetic and magnetocaloric properties of melt-extracted Mn1.26Fe0.60P0.48Si0.52 microwires. https://arxiv.org/abs/2109.12704

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