Premium
A study of the ferromagnetic behavior of Nd 16 Co 76– x Ru x B 8 alloys
Author(s) -
Paduani C.,
Valcanover J. A.,
Ardisson J. D.,
Yoshida M. I.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200541311
Subject(s) - ferrimagnetism , coercivity , curie temperature , tetragonal crystal system , antiferromagnetism , ferromagnetism , magnetic moment , materials science , magnetization , analytical chemistry (journal) , condensed matter physics , chemistry , crystallography , crystal structure , magnetic field , physics , quantum mechanics , chromatography
Abstract The structural and magnetic properties of the tetragonal 2:14:1 hard magnetic phase ( ϕ ) were investigated in Nd 16 Co 76– x Ru x B 8 alloys. The results indicated that Ru substitution does not harm the formation of ϕ in Co‐rich alloys. An antiferromagnetic Co–Ru coupling is concluded. The cell volume initially decreases with the Ru substitution. The coercivity is enhanced and reaches a maximum at the composition where the saturation magnetization has the lowest value. The Curie temperature as well as the mean magnetic moment decrease with increasing Ru concentration. With the increase of the Ru concentration the unit‐cell volume increases. A ferrimagnetic ordering is predicted at higher Ru concentrations. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)