Reentrant spin glass behavior in CE-type AFM Pr0.5Ca0.5MnO3 manganite

Effect of Pr doping on the properties of Bi0.5−xPrxCa0.5MnO3 (0≤x≤0.50) manganites

“…fig. 9) is close to earlier reported value but it is not as prominent as observed by other groups [16,34]. The decrease in M below T CO with decrease in temperature is an indicative of the decrease in FM cluster size.…”

“…For x = 0.20 sample, the observed decrease in M (FC) at 40 K is similar to what has been reported for Pr 0.5 Ca 0.5 MnO 3 [34]. This is RSG behavior which occurs due to the existence of frustrated spins at the expense of long-range ordering [47].…”

“…In these systems the Mn-site is equally occupied by Mn 3+ ( 4 3 1 2g g 3d : t e ), and Mn 4+ ( 3 3 0 2g g 3d : t e ). The bulk Pr 0.5 Ca 0.5 MnO 3 system shows a sharp charge ordered (CO) peak at 250 K and a CE-type AFM transition at 170 K and reentrant spin glass (RSG) state below 40 K due to the competition between FM and AFM interactions [16,34]. The half doped Bi 0.5 Ca 0.5 MnO 3 manganite exhibits C-type AFM structure below ~120 K [7].…”

Effect of copper on the magnetism of half doped bilayer manganite

“…Though the static value of T 0 is not known, its obtained value (28.88 70.05 K) differs by $ 0.7% from the measured value of T S (0.2). As mentioned above the SG character is also observed in the M-H curve of this sample measured at 10 K. A cusp around 34K was also observed in some perovskite manganites like Pr 0.5 Ca 0.5 MnO 3 [33] and attributed to the reentrant spin glass (RSG) behavior.…”

Possible magnetoelectric coupling in the half doped charge ordered manganite, Pr_0.5Ca_0.5MnO_3-d

“…The results are in accordance with the previous reports. 35,37 Heat capacity (C p ) as a function of temperature is shown in Fig. 1(b) where a peak and an anomaly are observed around T P and T CO , respectively.…”