Investigations of the Magnetization Reversal Processes in Nanocrystalline Nd-Fe-B Alloys Doped by Nb |
| M. Kaźmierczak, P. Pawlik, J.J. Wysłocki, I. Wnuk, P. Gębara, K. Pawlik and A. Przybył
Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland |
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| In the following article the magnetic properties and phase composition of (Nd10Fe67B23)100-xNbx (where x=5, 6, 7, 8, 9) alloys in the form: of ribbons are discussed. The X-ray diffraction studies revealed the coexistence of amorphous and nanocrystalline structures consisting of Nd2Fe14B, Nd1+εFe4B4 and metastable Nd2Fe23B3 phases. The shape of Mrev (Mirr) suggests that the magnetization reversal proceeds through the nucleation of the reversal domain for the ribbon doped with 5-7 at.% of Nb and the subsequent pinning of the domain walls for ribbons doped with 8 and 9 at.% of Nb. |
DOI: 10.12693/APhysPolA.131.789 PACS numbers: 75.30.Sg, 75.50.Bb |