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Magnetic Anisotropy Switch: Easy Axis to Easy Plane Conversion and Vice Versa

机译：磁各向异性开关：轴到平面转换容易，反之亦然

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1801846.1-1801846.8%The rational design of the magnetic anisotropy of molecular materials constitutes a goal of primary importance in molecular magnetism. Indeed, the applications of molecular nanomagnets, such as single-molecule magnets and molecular magnetic refrigerants, depend on the full control over this property. Axially anisotropic magnetic systems are frequently classified as easy axis or easy plane, depending on whether the lowest energy is obtained by application of a magnetic field parallelly or perpendicularly to the unique axis. Here, the magnetic anisotropy of three lanthanide complexes is studied as a function of magnetic field and temperature. It is found that for two of these the type of magnetic anisotropy switches as a function of these parameters. Thus, this paper experimentally demonstrates that the magnetic anisotropy is not uniquely defined by the intrinsic electronic structure of the systems in question but can also be reversibly switched using external stimuli: temperature and magnetic field.
机译：1801846.1-1801846.8％分子材料磁各向异性的合理设计是分子磁性中最重要的目标。实际上，诸如单分子磁体和分子磁性制冷剂之类的分子纳米磁体的应用取决于对该特性的完全控制。取决于将最低能量通过平行于或垂直于唯一轴施加磁场来获得，轴向各向异性磁系统通常分为易轴或易平面。在此，研究了三种镧系元素配合物的磁各向异性与磁场和温度的关系。已经发现，对于这些中的两个，磁性各向异性的类型随这些参数而变化。因此，本文实验证明，磁各向异性不是由所讨论系统的固有电子结构唯一定义的，而是还可以通过外部刺激（温度和磁场）可逆地切换。

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