The dynamical magnetic properties of the icosahedral $i\text{−}\mathrm{Tb}\text{−}\mathrm{Cd}$ quasicrystal (QC) were investigated by means of squid magnetometry. At low temperatures, below $\mathrm{T}\sim 4.5 \mathrm{K}$, we observe conventional spin glass features including aging, memory, and rejuvenation. Interestingly, from $\mathrm{T}\sim 4.5$ to 10 K, the spin configuration is also found to evolve with time (i.e., age as in spin glass), yet without memory. This suggests a reentrantlike behavior for the $i\text{−}\mathrm{Tb}\text{−}\mathrm{Cd} \mathrm{QC}$, where upon cooling from high temperatures, the system first displays a magnetically frustrated phase before turning into a spin glasslike one at the lowest temperatures. We discuss the nature and possible origin of this magnetic behavior, in the light of the results obtained in the $i\text{−}\mathrm{Gd}\text{−}\mathrm{Cd} \mathrm{QC}$, and ternary Tb-based quasicrystal approximants.

中文翻译：

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二十面体 i−Tb−Cd 准晶体中的磁挫败和玻璃态

二十面体的动态磁特性$我\text{-}铽\text{-}\mathrm{光盘}$通过鱿鱼磁力测定法研究了准晶体（QC）。低温时，低于$\mathrm{时间}～4.5 \mathrm{K}$，我们观察传统的旋转玻璃特征，包括老化、记忆和恢复活力。有趣的是，从$\mathrm{时间}～4.5$到 10 K 时，还发现自旋构型会随着时间（即​​自旋玻璃中的年龄）而演变，但没有记忆。这表明了类似重入的行为$我\text{-}铽\text{-}\mathrm{光盘} \mathrm{质量控制}$，从高温冷却后，系统首先显示出磁力受挫相，然后在最低温度下变成自旋玻璃状相。我们根据实验中获得的结果讨论了这种磁性行为的性质和可能的起源。$我\text{-}钆\text{-}\mathrm{光盘} \mathrm{质量控制}$，以及三元铽基准晶近似材料。