A Comparison of the magnetic characteristics and exchange spring effect of Y-substituted Co2Mn1-xYxO4 composite spinel oxides

Comparative study on the magnetic properties of Fe-substituted Co2Sn1−x Fe x O4 spinel oxides and its exchange bias effect

“…For example, the magnetic spinel oxides Co 2 Sn 1−x T x O 4 (T = Al, Sc, and Y; 0 ⩽ x ⩽ 0.2) exhibits a para-ferromagnetic transition along with an EB effect at low temperatures (T < 20 K) due to the pinning effect in the spin-glass phase [19]. Similarly, T C = 174 K is noted for Y-substituted Co 2 Mn 1−x Y x O 4 , which was synthesized by the sol-gel reaction method shows exchange spring effect and SG state [20]. Moreover, NiCr 2−x Fe x O 4 (x = 0 and 0.2) with T C = 71-192 K were synthesized via co-precipitation technique exhibits large EB effect [21].…”