Quasicrystalline Al₈₀Mn₁₂Si₄X₄ (X = Cr, Y, Sm and Nd) alloys were produced and their magnetic properties were investigated. X-ray diffraction and scanning electron microscopy revealed the presence of atomic arrangements with pentagonal symmetry. The nature of the coupling of the magnetic moments was investigated for temperatures (T) varying from 2.0 to 300.0 K and for applied magnetic fields in the range ± 85.0 kOe. The dc magnetic susceptibility indicated that the net magnetic interactions are antiferromagnetic for the samples with Cr and Y. However, the samples with Sm and Nd showed to be ferromagnetic at low-T. The coercivity and the remanence determined from hysteresis loops at 5 K for the sample with Sm (Nd) was, respectively, 0.54 kOe (0.40 kOe) and 0.047 emu/g (0.19 emu/g). A spin-glass-like phase was observed for the AlMnSiNd (AlMnSiSm) sample below 2.7 K (2.4 K). The results are accounted for by taking into consideration the coupling among the rare earth magnetic moments.

制备准晶体Al ₈₀ Mn ₁₂ Si ₄ X ₄（X = Cr，Y，Sm和Nd）合金，并研究了它们的磁性能。X射线衍射和扫描电子显微镜揭示了具有五边形对称性的原子排列的存在。对于温度（T）在2.0到300.0 K之间变化以及施加在±85.0 kOe范围内的磁场，研究了磁矩耦合的性质。直流磁化率表明，含Cr和Y的样品的净磁相互作用为反铁磁性。但是，含Sm和Nd的样品在低T时显示出铁磁性。。对于具有Sm（Nd）的样品，在5 K下由磁滞回线确定的矫顽力和剩磁分别为0.54 kOe（0.40 kOe）和0.047 emu / g（0.19 emu / g）。低于2.7 K（2.4 K）的AlMnSiNd（AlMnSiSm）样品观察到类似自旋玻璃的相。通过考虑稀土磁矩之间的耦合来考虑结果。