Magnetism and Magneto-Optics of MnBi Nano-Particles

概要

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Thin MnBi films have been grown by molecular beam-epitaxy technique in combination with an alloying process.The formation of MnBi is driven by an enhanced intermixing due to diffusion close to the entectic temperature where Bi becomes liquid.The growth process of MnBi was investigated in detail by preparing a wedge-shaped thin film.Highly c-axis oriented nano-particles of MnBi are formed in a Bi matrix.The particles show two magnetic phases with magnetic moments of 744 kA/m and 113 kA/m and coercivities of 20 kOe and 7 kOe, respectively.They have a large magnetic energy product of 171 kJ/M~3.The magneto-optical Kerr rotation in the visible spectral range is determined.
社団法人日本磁気学会の論文
2001-03-15