Crystal structure and magnetic transition in Fe-Mn-Ga ribbon

Author

Zhang, D. ; Zhang, H. ; Liu, E. ; Wang, W. ; Wu, G. ; Yue, M.

Author_Institution

Coll. of Mater. Sci. & Eng., Beijing Univ. of Technol., Beijing, China

fYear

2015

fDate

11-15 May 2015

Firstpage

1

Lastpage

1

Abstract

Pure bcc β-phase, fcc γ-phase and hcp phase of Fe-Mn-Ga system have been obtained by melt spinning method and subsequent anneal. It is found that there is a rapid phase transition from β and γ-phase to hcp phase. The β-phase shows a typical low temperature ferromagnetic property, while γ-phase shows a ferromagnetic to antiferromagnetic transition. The newly found hcp phase shows a good ferromagnetic behavior with a relatively high T_C, which makes it a possible candidate for hard magnetic material.

Keywords

annealing; crystal structure; ferromagnetic-antiferromagnetic transitions; gallium alloys; iron alloys; manganese alloys; melt spinning; permanent magnets; Fe-Mn-Ga ribbon; Fe₄₉Mn_23.5Ga_27.5; annealing; bcc β-phase; crystal structure; fcc γ-phase; ferromagnetic-antiferromagnetic transition; hard magnetic material; hcp phase; melt spinning method; Annealing; Magnetic field induced strain; Magnetic levitation; Magnetic separation; Magnetometers; Metals; X-ray scattering;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference (INTERMAG), 2015 IEEE

Conference_Location

Beijing

Print_ISBN

978-1-4799-7321-7

Type

conf

DOI

10.1109/INTMAG.2015.7157273

Filename

7157273