The glassy features of a single crystal of the icosahedral quasicrystal i-GdCd_7.5 were investigated by means of squid magnetometry. The temperature-dependent zero-field–cooled magnetization was recorded on re-heating from low temperatures after halts in the cooling. The results evidence dynamical features akin to those of archetypal spin glasses, such as aging, memory, and rejuvenation. The results are compared to those of model spin glasses with different spin dimensionality, suggesting a qualitative similarity to the behaviour of metallic RKKY “Heisenberg” spin glasses.

中文翻译：

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准晶体中的记忆和复兴

通过鱿鱼磁强法研究了二十面体准晶体i -GdCd _7.5单晶的玻璃态特征。停止冷却后，从低温重新加热时记录了随温度变化的零场冷却磁化强度。结果证明了与原型旋转眼镜类似的动力学特征，例如衰老，记忆和恢复活力。将结果与具有不同旋转尺寸的模型旋转玻璃的结果进行比较，表明与金属RKKY“海森堡”旋转玻璃的行为在质量上有相似性。