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arXiv · 1005.1706

Size-dependent spin-reorientation transition in Nd2Fe14B nanoparticles

Chuanbing Rong·Narayan Poudyal·J. Ping Liu
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Abstract

Nd2Fe14B magnetic nanoparticles have been successfully produced using a surfactant-assisted ball milling technique. The nanoparticles with different size about 6, 20 and 300 nm were obtained by a size-selection process. Spin-reorientation transition temperature of the NdFeB nanoparticles was then determined by measuring the temperature dependence of DC and AC magnetic susceptibility. It was found that the spin-reorientation transition temperature (Tsr) of the nanoparticles is strongly size dependent, i.e., Tsr of the 300 nm particles is lower than that of raw materials and a significant decrease was observed in the 20 nm particles.

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Chuanbing Rong, Narayan Poudyal, J. Ping Liu. 2010-05-11. Size-dependent spin-reorientation transition in Nd2Fe14B nanoparticles. https://doi.org/10.1016/j.physleta.2010.07.061

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