标题： 非海森堡塔伊型准晶体近似体中的普适旋转磁序 显示英文标题

标题： Universal whirling magnetic orders in non-Heisenberg Tsai-type quasicrystal approximants

摘要： 非反铁磁Tsai型1/1近似晶体（ACs）在Au-Ga-Dy系统中的磁序通过体积磁化率、中子衍射和非弹性中子散射技术进行了研究。 结果揭示了沿[111]晶格轴旋转的非共面、铁磁（FM）和反铁磁（AFM）自旋构型，这与含有Tb和Ho的对应物中观察到的类似。 也观察到了类似于基于Tb的对应物的晶体电场激发，表明存在强烈的Ising-like磁各向异性。 这些全面的实验和分析揭示了在非反铁磁Tsai型ACs中稳定非共面FM和AFM结构的普遍机制，该机制独立于稀土元素种类（Tb、Dy、Ho）；FM簇内相互作用和强Ising-like各向异性。 显示英文摘要

摘要： Magnetic orders of non-Heisenberg Tsai-type 1/1 approximant crystals (ACs) in the Au-Ga-Dy system were studied through bulk magnetization, neutron diffraction, and inelastic neutron scattering techniques. The results uncovered noncoplanar, ferromagnetic (FM) and antiferromagnetic (AFM) spin configurations whirling along [111] crystallographic axis, which is analogous to those observed in the Tb- and Ho-contained counterparts. The crystal electric field excitations similar to those in the Tb-based counterpart are also observed indicating the strong Ising-like magnetic anisotropy. These comprehensive experiments and analyses have revealed the existence of a universal mechanism that stabilizes noncoplanar FM and AFM structures in non-Heisenberg Tsai-type ACs, independent of the rare-earth species (Tb, Dy, Ho); FM intra-cluster interactions and strong Ising-like anisotropy.