Abstract Magnetic properties of nanocomposite materials containing particles of rare earth titanates of R2Ti2O7 type, where R is a rare earth ion, including “spin ice” materials are investigated. The descending branches of hysteresis loop have been studied in detail in temperature range from 2 to 50 K. It has been shown that nanocomposites with Yb2Ti2O7, Dy2Ti2O7 and Er2Ti2O7 particles have one intersection point of the descending branches in some temperature range unlike many other nanocomposites. It is shown that magnetization has only weak temperature dependence near this point. It has been obtained that nanocomposites with Pr2Ti2O7 and Nd2Ti2O7 particles have no hysteresis loop. All above findings point out to unusual magnetic structures of the studied samples.

中文翻译：

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纳米结构稀土钛酸盐磁化温度依赖性的平台期

摘要 研究了含有 R2Ti2O7 型稀土钛酸盐颗粒的纳米复合材料的磁性能，其中 R 是稀土离子，包括“旋冰”材料。在 2 到 50 K 的温度范围内详细研究了滞后回线的下降分支。已经表明，与许多其他纳米复合材料不同，含有 Yb2Ti2O7、Dy2Ti2O7 和 Er2Ti2O7 颗粒的纳米复合材料在某些温度范围内有一个下降分支的交点。结果表明，磁化强度在该点附近仅具有较弱的温度依赖性。已经获得具有Pr2Ti2O7和Nd2Ti2O7颗粒的纳米复合材料没有滞后回线。以上所有发现都指出了所研究样品的异常磁性结构。