Magnetism of (Fe,Co)-Based Alloys with the La6Co11Ga3-Type

Magnetic ordering of the R6Fe13Sn (R=Nd, Pr) compounds studied by neutron diffraction

“…The only di!erence between the two structures is the uniaxial structure found for the Nd Fe Sn compound. The easy magnetization direction of the latter compound agrees with results of MoK ssbauer spectroscopy [13]. It is also consistent with a model description proposed in Ref.…”

“…After correction, the latter Fe1 moments are in good agreement with those found for Pr Fe Sn and Nd Fe Sn in the course of the present investigation. Also, there is much better agreement with the large hyper"ne "elds reported in MoK ssbauer investigations for this Fe site [13,14].…”

A Mössbauer spectral study of the Nd6Fe13X compounds where X is Si, Cu, Ag, and Au

“…1. These spectra and those of Nd 6 Fe 13 Cu are very similar to those 3 of Nd 6 Fe 13 Au and have been analyzed in a similar fashion. Because the iron magnetic moments are oriented in the basal plane of the unit cell, the 16k sites are magnetically inequivalent and, because of their point symmetry, are subdivided into two eightfold populated sites, labelled 16k and 16kЈ herein.…”

“…1 Nd 6 Fe 13 Au was first reported 2 to be ferromagnetic below 340 K and later 3 to be antiferromagnetic below 413 K. Nd 6 Fe 13 Si was first 1 reported to be antiferromagnetic below 725 K and later 4 to be ferrimagnetic with a Curie temperature of 441 K, a compensation point of 357 K, and to have iron magnetic moments parallel to the tetragonal c axis at room temperature. Nd 6 Fe 13 Ag shows 2 ferromagnetic behavior below 340 K. Nd 6 Fe 13 Cu has 5 a complex noncolinear magnetic structure with a Curie temperature of 463 K. This range of controversial magnetic behaviors has prompted us to extend our earlier 3 Mössbauer spectral study of Nd 6 Fe 13 Au.…”

“…The compounds Nd 6 Fe 13 X, where X is Si, Cu, Ag, and Au crystallize in the tetragonal Nd 6 Fe 13 Si structure. 1 Nd 6 Fe 13 Au was first reported 2 to be ferromagnetic below 340 K and later 3 to be antiferromagnetic below 413 K. Nd 6 Fe 13 Si was first 1 reported to be antiferromagnetic below 725 K and later 4 to be ferrimagnetic with a Curie temperature of 441 K, a compensation point of 357 K, and to have iron magnetic moments parallel to the tetragonal c axis at room temperature.…”