Magnetic Moment and Electronic Structure of Amorphous Alloys of the Type Fe_80-xTM_xB₂₀

Abstract

Magnetic properties of amorphous alloys of the type Fe80-xTMxB20 (0 ≤ x ≤ 20 at.%, TM = Ni, Co, Mn, Cr, V, Ti) are presented and analyzed.The basis of our research work was the Mössbauer measurements, magnetic saturation measurements, derivative thermo-magnetogravimetry and differential thermal analysis measurements. The magnetic moments are discussed in terms of Friedel's virtual-bound-state model for light TM impurities in strong ferromagnets. Some conclusions about the electronic structure are presented.

Curie Temperature of Amorphous Ferromagnets of Type Fe-TM-M

“…Figure 1 shows the concentration dependence of the Curie temperature for the (Fe1-cΤΜc)80B20 (TM = Co, Ni, Mn, Cr, Ti, V) amorphous alloys published by us previously [1]. Because these experimen †al data are restricted to low TM concentration, other experimental data in a wider concentration range and with other glass-forming elements are presented as well [2][3][4][5][6].…”