The basic exchange interactions will be discussed for a variety of (R, T) compounds, in particular RT₂ (R: rare earth, or Y; T: transition metal). A magnetic phase diagram for (R, Y)Co₂ compounds is derived. The combined effect of the volume and the molecular field caused by the rare-earth spins is demonstrated on R(Co, Fe)₂, (R, Y)Co₂, R(Co, Al)₂ and R(Co, Cu)₂, with an emphasis on the metamagnetic transition in the 3d-subsystem. © 1992.

Duc N.H., Hien T.D., Brommer P.E., Franse J.J.M.

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Từ khóa : Magnetic Materials--Metamagnetism; Molecules; Transition Metals; Exchange Interactions; Rare Earth Compounds