MAGNETIC-PROPERTIES OF INTERCALATION COMPOUNDS MXTIS2 (M=3D TRANSITION-METAL)

Magnetization measurements have been made on 3d transition-metal intercalation compounds of M//xTiS//2 (M equals V, Cr, Mn, Fe, Co and Ni; 0 less than equivalent to x less than equivalent to 1) at 4. 2, 77 and 300 K in static fields up to 20 kOe and in pulsed fields up to 160 kOe. The ac magnetic susceptibility measurements in dc fields have also been made for Fe//xTiS//2. We have identified various types of magnetic phases in M//xTiS//2, such as paramagnetic, spin-glass, cluster-glass or mictomagnetic, and ferromagnetic ones, depending on the kind of guest 3d metals and their concentrations. Magnetic properties of these materials can be understood in terms of an itinerant or band picture rather than a localized or rigid band model.