Abstract —It is shown that the method of random exchange-interaction fields is suitable for identifying the temperature interval where the short-range magnetic order is still present while the long-range order is already absent. On this interval, the state of the magnetic system is a set of ferromagnetic clusters whose magnetic moment can vary with time and ensure magnetic viscosity. In the paper, the Curie point and paramagnetic Curie point are determined for a two-sublattice ferrimagnetic with the distribution of iron ions corresponding to titanomagnetite.

中文翻译：

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钛磁铁矿的长程和短程磁序

摘要 —表明随机交换相互作用场方法适用于识别短程磁序仍然存在而长程磁序已经不存在的温度区间。在这个区间上，磁系统的状态是一组铁磁团簇，其磁矩可以随时间变化并保证磁粘性。文中确定了二亚晶格亚铁磁性的居里点和顺磁性居里点，铁离子分布对应于钛磁铁矿。