In this work, we report the effect of sintering temperature (T_S) on the magnetic interactions and the critical behavior of Pr_0.67Sr_0.33MnO₃ manganite prepared via sol–gel method (700 °C ≤ T_S ≤ 1200 °C). The critical exponents study revealed that the 3D-Ising model is the best model to describe the magnetic interactions in the P1000 (T_S = 1000 °C) and P1200 (T_S = 1000 °C) samples. Consequently, a strong magnetic anisotropy characterizes these samples near the paramagnetic-ferromagnetic transition temperature, such anisotropy can be linked to the magnetic moment of Pr³⁺ ions (µ = 3.58 µ_B). For T_S ≤ 850 °C, it becomes nearly impossible to speak about universality class due to the presence of great magnetic disorder induced by several factors like spin disordered shell in nanoparticles, magnetic frustration and Griffiths phase.

在这项工作中，我们报告烧结温度的效果（Ť_小号上的磁相互作用）和Pr的临界行为_0.67锶_0.33的MnO ₃水锰矿通过溶胶-凝胶法（700℃≤制备 Ť_小号 ≤1200℃）。临界指数研究显示，3D-伊辛模型是描述在P1000（磁性相互作用的最佳模式Ť_小号 = 1000℃）和P1200（Ť_小号 = 1000℃）的样品。因此，强磁性各向异性表征了这些样品在顺磁-铁磁转变温度附近，这种各向异性可以与Pr ³⁺离子的磁矩相关联（µ  = 3.58 µ _B）。对于Ť_小号 ≤850℃，它由于受到几个因素引起的大的磁病症的存在变得几乎不可能谈论普适类如旋在纳米颗粒中，磁性沮丧和格里菲斯相位无序壳。