Title :
MnBi nanoparticles: Improved magnetic performance through annealing of as-synthesized nanoparticles
Author :
Rowe, M.P. ; Skoropata, E. ; Wrocynskyj, Y. ; Desautels, R.D. ; Van Lierop, J.
Author_Institution :
Toyota, Ann Arbor, MI, USA
Abstract :
Ferromagnetic MnBi nanoparticles are synthesized and characterized in this study for applications in the realization of hard-soft exchange-coupled nanocomposite structures. The nanoparticles are obtained at room temperature by hot pressing and thermal annealing. X-ray diffraction, vibrating sample magnetometry, and SQUID magnetometry are used for characterization. Observations show that annealing of the nanoparticles results to high coercivity values.
Keywords :
SQUID magnetometry; X-ray diffraction; annealing; bismuth alloys; coercive force; ferromagnetic materials; hot pressing; magnetic particles; manganese alloys; nanofabrication; nanomagnetics; nanoparticles; MnBi; SQUID magnetometry; X-ray diffraction; coercivity; ferromagnetic nanoparticles; hard-soft exchange-coupled nanocomposite structures; hot pressing; temperature 293 K to 298 K; thermal annealing; vibrating sample magnetometry; Annealing; Magnetic separation; Magnetometers; Manganese; Nanoparticles; Perpendicular magnetic anisotropy;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157454
