| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8156390 | Journal of Magnetism and Magnetic Materials | 2015 | 5 Pages |
Abstract
The structural and magnetic properties of melt-spun ribbons with nominal composition of Mn55Bi45 were investigated using X-ray diffraction, transmission electron microscopy and magnetometer measurements. A large coercivity (Hc) of 0.8Â T was observed in the as-spun ribbons. Microstructure reveals the presence of Mn-Bi nanoparticles in the as-spun ribbons. Coercivity was found to increase with increasing temperature with a maximum coercivity of 1.4Â T at T=503Â K in the as-spun ribbons. Heat treatment of the as-spun ribbons resulted in the increase of LTP MnBi phase. Spin reorientation transition (TSR) was observed around 100Â K.
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Authors
S. Kavita, U.M.R. Seelam, D. Prabhu, R. Gopalan,