Magnetoresistance of Cu–Mn–Al melt-spun ribbons containing the system of interacting ferromagnetic inclusions

Structural and magnetic changes induced by high energy ball milling of CdFe2O4

“…6(a) and (b) is also characteristic of reentrant spin glass behavior, as shown in Ref. [1]. The wide peaks observed in ZFC curves indicate wide distribution of particle sizes.…”

“…The drop in ZFC magnetization below the temperature at which ZFC curve attains a maximum is characteristic of re-entrant spin glass behavior [1]. The drop of the FC magnetization curves observed in Fig.…”

Stress-induced transformation in a Ni-Mn-In alloy and the concomitant change of resistivity

“…Indeed, Fig. 1a shows a peak at a temperature of about 130 K that can be attributed to freezing of the magnetic moments of nano-sized ferromagnetic clusters embedded in an antiferromagnetic matrix, in a way similar to formation of a superspin glass state [12].…”

Structural and magnetic properties of Cu50Mn25Al25−Ga Heusler alloys

“…8 shows the magnetization measurements of melt-spun ribbons of Cu 50 Mn 25 Al 25 À x Ga x (x¼0, 4, 8 and 10) alloys in the zero field cooled (ZFC) and field cooled (FC) modes. The magnetization measurements of a sample in the ZFC and FC modes can provide an estimate of magnetic ordering temperature in a system with long range magnetic order or blocking/freezing temperature in the case of medium range order [20]. The ZFC and FC magnetization curves for the melt-spun ribbons of x ¼0, 4, 8 and 10 shows the splitting (see Fig.…”

“…The number of substitution studies has been made in Heusler alloys to study its effect on the magnetic properties [13][14][15][16][17][18][19]. The effects of offstoichiometry in Cu 2 MnAl, by various partial replacements have been studied [20][21][22][23]. However, the effect of partial replacement by Ga at the place of Al has not been studied so far.…”