Structure and Magnetic Properties of Boron Doped Fe50+xCu25−xM25(M = Al, Ga) and Fe50+xCo25−xGa25 Heusler Alloys

In this paper, we study the effect of B introduction in various Heusler alloys on their structural and magnetic properties. Samples with nominal stoichiometry Fe 50+x Cu 25-x Ga 25 , Fe 50+x Cu 25-x Al 25 , and Fe 50+x Co 25-x Ga 25 (x= 0-10) with the addition of excess B up to 12 at% were prepared...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2014-11, Vol.50 (11), p.1-4
Main Authors: Sarafidis, Charalampos, Gjoka, Margarit, Chen Wang, Hadjipanayis, George, Kalogirou, Orestis, Niarchos, Dimitri G.
Format: Article
Language:English
Subjects:
Boron
Compounds
Magnetic properties
Magnetism
Materials
Saturation magnetization
X-ray scattering
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Summary:In this paper, we study the effect of B introduction in various Heusler alloys on their structural and magnetic properties. Samples with nominal stoichiometry Fe 50+x Cu 25-x Ga 25 , Fe 50+x Cu 25-x Al 25 , and Fe 50+x Co 25-x Ga 25 (x= 0-10) with the addition of excess B up to 12 at% were prepared with Ar arc-melting as base materials. The starting materials were subsequently converted to ribbons using melt-spinning technique with velocity of 35 and 40 m/s, while the other parameters were kept fixed. Basic study of the alloys was conducted with various characterization techniques (energy dispersive X-ray spectrometry, X-ray powder diffraction, and magnetization versus temperature and field). The materials were thermally treated at various temperatures between 873 and 1073 K and the effect on the structure and magnetic properties was studied.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2014.2325901