Critical parameters near the ferromagnetic–paramagnetic phase transition in La0.7A0.3(Mn1−xbx)O3 (A=Sr; B=Ti and Al; x=0.0 and 0.05) compounds

Critical Behavior Near the Paramagnetic to Ferromagnetic Phase Transition Temperature in Sr1.5Nd0.5MnO4 Compound

“…Among the fundamental questions which remain controversial is the universality class related to the paramagnetic (PM) to ferromagnetic (FM) transition in manganites [8][9][10]. The universality class does not depend on microscopic details of the system but only on global information such as the dimension of the order parameter and space.…”

Critical behavior and magnetocaloric effect in Co50−Ni Cr25Al25 (x= 0 and 5) full Heusler alloy system

“…The close relation between transport and magnetism in these materials has been explained by many theories, such as double exchange (DE) interaction [21], polaronic effects [22] and phase separation [23]. Among the several fundamental questions which remain controversial important one is the universality class related to the paramagnetic (PM) ferromagnetic (FM) transition in these magnetic materials [24,25].…”

Investigation on the structural, magnetic, magnetocaloric and magnetotransport behaviour of La0.7Sr0.3MnO3 manganites synthesised by different routes

“…From the obtained values, it can be seen that, in these compounds, the magnetic transition nature lies somewhere between the mean field model and the 3D Heisenberg model. [72][73][74] The value of g is slightly deviated from that anticipated for the mean field model, indicating long-range magnetic interactions b and g. 75 The modified Arrott plots plotted using the calculated values of b and g are shown in Fig. 13.…”