Abnormal near-surface magnetic properties of heterogeneous (amorphous/nanocrystalline) Fe80.5Nb7B12.5 ribbons

Surface and bulk magnetic properties of as-quenched FeNbB ribbons

“…Similar surface magnetic behavior has been observed for annealed FeNbB ribbons [15]. Moreover, Shalyguina et al [16] reported that with increasing annealing temperature the surface homogeneity properties of FeNbB alloys are improved. Hence there is a need for detail investigation of surface magnetic properties and annealing processes in the materials.…”

Magnetic-field behavior of heterogeneous magnetic materials

“…At last, one can note that we had also observed the abnormal MOKE hysteresis loops (up to partially and completely inverted hysteresis loops) for the annealed at T ¼ 380-550 1C Fe 80.5 Nb 7 B 12.5 ribbons [10][11][12]. The bulk hysteresis loops of these ribbons (in contrast to the thin-film Co/Ni/Fe and Fe/Zr/Fe samples) had the usual forms.…”