论文标题
有效地脱钩铁磁性转子，因为赫斯勒合金的挫败感
Effective decoupling of ferromagnetic sublattices by frustration in Heusler alloys
论文作者
论文摘要
由于交换相互作用的长期和对称性质，铁磁金属系统中的磁性挫败感是不寻常的。在这项工作中，我们证明，可以通过微调磁相互作用来在多组分立方结构中获得高度沮丧的铁磁相。这种特殊的状态是在Ni-Mn-（In，SN）助力器合金中实现的，并导致其两个相互交织的铁磁sublattices的有效解耦。一个sublatice是在宏观居里温度（TC）下方排序的铁磁远距离距离，而第二个则保持无序，直到在T << TC处发生交叉到极化状态。该结果指出，金属系统中磁相互作用的精细工程会导致有趣的新颖和新兴现象。
Magnetic frustration in ferromagnetic metallic systems is unusual due to the long-range and symmetric nature of the exchange interactions. In this work we prove that it is possible to obtain a highly frustrated ferromagnetic phase in a multi-sublattices cubic structure through a fine tuning of the magnetic interactions. This peculiar state is achieved in Ni-Mn-(In, Sn) Heusler alloys and results in the effective decoupling of their two intertwined ferromagnetic sublattices. One sublattice is ferromagnetic long range ordered below the macroscopic Curie temperature (TC ) whereas the second one remains disordered until a crossover to a polarized state occurs at T << TC . This result points out that a fine engineering of the magnetic interactions in metallic systems can lead to interesting novel and emergent phenomena.
