Structure and hyperfine interactions in Al-doped FINEMET

Mössbauer Study of Magnetic Texture of Finemet-Type Ribbons

“…Besides, the axis perpendicular to the surface of ribbon is preferred in Fe 73.5 Cu 1 Nb 3 Ge 13.5 B 9 alloy while in-plane, transverse direction is favored in Fe 51. 5 Co 22 Cu 1 Nb 3 Si 13.5 B 9 .…”

“…Many attempts of improving the properties of classical Finemet have been done up to now. They consist in searching the optimal chemical composition [3][4][5][6][7][8] as well as manufacturing conditions [9] and also thermal treatment terms [10][11].…”

Influence of Al and Ni on the magnetic properties of Finemet alloys

“…Partial substitution of Ni (ferromagnetic element) or Al (non-ferromagnetic element) for Nb leads to different effects on B s . A small amount of Al (r3 at%) substitution for Fe in the Finemet alloy results in the decrease of the Curie temperature of a-Fe(Si) nanocrystalline phase [25], indicating that the interaction between the adjacent Fe-Fe atoms becomes weakened. Based on the discussion above, the Al-F alloy has a lower B s than the Ni-F alloy, which is attributed to the increase of distance between Fe-Fe atoms resulting from the diffusion of Al into the a-Fe(Si) phase.…”

Finemet Thin Films Substituted by Chromium - CEMS and MOKE Study

“…Finemet alloys of original composition Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 and similar alloys with modified chemical constitution are usually obtained in a form of amorphous ribbons by rapid quenching of melt and optionally they are subjected to the controlled annealing in order to form nanocrystalline structure. The alloys are well-known for excellent soft magnetic properties resulting in many applications [1][2][3][4]. Employment of the form of thin film gives additional possibilities, for instance Finemet substituted by Cr can be used for fabrication of magnetic thin film inductors in high-frequency applications [5].…”