Structural and magnetic properties of Fe60Al40 alloys prepared by means of a magnetic mill

Evolution of microstructural and mechanical properties of nanocrystalline Co2FeAl Heusler alloy prepared by mechanical alloying

“…The rate of reaction between Fe and Al is lower than that of Fe and Co. Accordingly, the formation of FeAl requires 100 h of MA 32. In another work, Azizi et al 33 have reported that the formation of Fe 50 Co 50 has taken 30 min of MA.…”

“…Reports related to the preparation of CoFe and FeAl binary compounds show that this behaviour is not unexpected. 26,32 For example, CoFe samples have been obtained after 12 h of MA. 26 The rate of reaction between Fe and Al is lower than that of Fe and Co.…”

Spin polarization and magnetotransport properties of systematically disordered Fe60Al40 thin films

“…Furthermore, four samples with increasing irradiation fluences are investigated. The spin polarization has been extracted to be 25(3), 26(3), 40 (6), and 46(3)% for irradiation fluences of 6 × 10 14 , 2 × 10 15 , 9 × 10 15 , and 2 × 10 16 ions/cm 2 , respectively. The trend towards higher spin polarization signifies a positive correlation between the irradiation fluence and the difference between the spin-up and spin-down density of states (DOS) at the Fermi level.…”

“…The phase region x < 0.2 is ferromagnetic, and the magnetization follows the linear relation μ = 2.2μ B (1 − x)/Fe (where μ B is the Bohr magneton) [5]. The magnetic behavior in the intermediate-concentration region 0.2 < x < 0.4 depends on the preparation conditions and the degree of chemical order [6][7][8][9][10][11][12] and is attributed to the competition between Fe-Fe ferromagnetic exchange and Fe-Al-Fe antiferromagnetic superexchange interactions.…”

Thermally induced transition from a ferromagnetic to a paramagnetic state in nanocrystalline FeAl processed by high-pressure torsion

“…The intermetallic compound FeAl is paramagnetic in its B2 phase; it shows a transformation to a ferromagnetic state upon deformation or ion irradiation [1,2]. Several publications are dealing with this matter including various deformation methods like cold rolling, ball milling or nanoindentation [3][4][5].…”