Physics – Condensed Matter – Materials Science
Scientific paper
2011-09-14
Physics
Condensed Matter
Materials Science
4 pages, 5 figures, 1 table. This is a report to the conference MISM-2011 (Moscow, August 2011)
Scientific paper
The results of X-ray diffraction, complex in-field (up to 9 T) and temperature (5-300 K) Moessbauer and magnetometric studies of the ordered Fe_{65}Al_{35-x}M_x (M=Ga, B; x=0,5,10) and Fe_{65-x}V_xAl_{35} (x=5,10) alloys are presented. Analysis of the magnetometry studies shows that the systems Fe_{65}Al_{35} and Fe_{65}Al_{35-x}Ga_x (x=5, 10) are characterized by two different magnetic states with essentially distinguishing hysteresis loops and AC susceptibility values. The temperature and external magnetic field values inducing the transition from one magnetic state to another are higher in the Ga-doped alloys than in the reference Fe_{65}Al_{35} alloy. The boron addition transforms the magnetic state of the initial alloy Fe_{65}Al_{35} into a ferromagnetic one exhibiting high magnetic characteristics. Substitution of V for Fe in the ternary alloys Fe_{65-x}V_xAl_{35} results in reduction of magnetic characteristics and collapsing of 57Fe hyperfine magnetic filed.
Dellmann T.
Dobysheva L.
Granovsky S.
Klauss Hans-Henning
Korolyov A. A.
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