Influence of the Local Environment on the Magnetic Properties of the Ordered Fe_{1-x}Al_{x} Alloy

• Authors: J. Deniszczyk
• Languages of publication: EN

Abstracts

EN

The electronic and magnetic properties of the ordered binary Fe_{1-x}Al_{x} alloy with the B2 crystal structure were calculated for Al concentrations x=0.1875-0.5 using the supercell structure. The calculations showed that for increasing Al contents the average magnetization of Fe_{1-x}Al_{x} falls down rapidly. Upon lowering the unit cell volume, almost all configurations of compositions with x ≥ 0.25 show the abrupt change of magnetic state from the high moment magnetic state to the low moment magnetic state with the moment reduction 0.6-0.8 μ_{B} per atom. The configurations were found for which the low moment magnetic state solutions with the antiferromagnetic alignment of magnetic moments of Fe atoms at antisite positions are stable.

Keywords

EN

71.15.La; 71.15.Fv; 71.20.Lp; 75.50.Bb; 75.30.-m

Discipline

• 71.20.Lp: Intermetallic compounds
• 75.50.Bb: Fe and its alloys
• 75.30.-m: Intrinsic properties of magnetically ordered materials(for critical point effects, see 75.40.-s; for magnetotransport phenomena, see 75.47.-m)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 3
• Pages: 583-586

Dates

published

2000-03

Contributors

author

J. Deniszczyk

• Institute of Physics and Chemistry of Metals, Silesian University, Bankowa 12, 40-007 Katowice, Poland

Identifiers

DOI

10.12693/APhysPolA.97.583