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Deals with a study which investigated the low field alternating current susceptibility and magnetization curves of milled Sm[sub2]Fe[sub17]N[sub3] powders. Preparation of the monocrystalline Sm[sub2Fe[sub17]N[sub3] powders; Magnetization of aligned powder; Magnetization of isotropic powder.

Determines the magnetic properties of sintered Sm[sub2]Fe[sub17]N[suby] magnets. Retention of the crystalline structure and the magnetic properties of Sm[sub2]Fe[sub17]N[suby] nitrides; Grain size dependence of coercivity; Origination of the Sm[sub2]Fe[sub17]N[suby] nitride magnet.

Presents information on the study conducted which investigated the alternating current susceptibility of Dy2Fe17-xGax compounds. Discussion on the change of anisotropy type in R2Fe17 with the substitution of some Ga for Fe; Effects of decreased temperature in the compound; Experimental procedures used in this study; Results of this study.

Calculates using the linear muffin-tin orbital technique, the electronic structure and hyperfine fields for antiferromagnetic YFe6Sn6 compounds. Examination of the ferromagnetic character of Fe atoms; Measurement of the hyperfine field at low temperature; Relation between the magnetic moment and hyperfine field on Fe sites; Experimental procedures of the study; Results of the study.

Reports on the addition of dysprosium, cobalt, aluminum and niobium into the magnets with nominal composition to improve the poor thermal stability of NdFeB magnets. Samples used to obtain the data of irreversible loss of open-circuit flux density at different temperatures.

A complex mode-locking (entrainment) topology underlying the continuous stirred tank reactor reaction model subjected to impulsive perturbations is identified. Employing high-resolution stability diagrams, we exhibit the global structure of mode-locking oscillations and describe how they are interconnected and how their complexity unfolds with control parameters varying. The scenarios shown in the bi-parametric planes revealed that the skeleton of Arnold's tongues is organized according to the symmetric Stern-Brocot sum tree. Moreover, the mode-locking organization is controlled by an invariant torus (a pair of frequencies) initiated from Hopf bifurcations. Interestingly, the mode-locking order is unfolded in an elusive way, that is, in perfect agreement with the reciprocal of the Stern-Brocot sum tree. The findings reported here contribute to providing a description and classification of mode-locking oscillations for the impulsive system.