Nanoscale control of competing interactions and geometrical frustration in a dipolar trident lattice.
Nanoscale control of competing interactions and geometrical frustration in a dipolar trident lattice.
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DOI：
10.1038/s41467-017-01238-4
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发表时间：
2017-10-17
影响因子：
16.6
通讯作者：
van Dijken S
中科院分区：
文献类型：
--
作者：
Farhan A;Petersen CF;Dhuey S;Anghinolfi L;Qin QH;Saccone M;Velten S;Wuth C;Gliga S;Mellado P;Alava MJ;Scholl A;van Dijken S
几何挫折发生在系统中的实体，受到给定的晶格约束，阻碍同时最小化它们的局部相互作用。在磁学中，包含几何挫折的系统是迷人的，因为它们的行为不仅难以预测，而且会导致奇异物质状态的出现。在这里，我们提供了一个人工受挫系统，偶极三叉戟晶格，最近邻磁矩之间的竞争相互作用的平衡可以直接控制，从而允许灵活的几何挫折和操纵基态配置的调整第一次看。我们的研究结果不仅为偶极三叉戟晶格的低温物理学的未来研究提供了基础，而且还展示了这种设计挫败概念如何提供磁挫败超材料。人工磁性纳米结构使研究竞争受挫的相互作用与更多的控制系统参数比可能在磁性材料。Farhan等人提出了一种二维晶格几何形状，其中可以通过调整晶胞参数来控制挫折。
Geometrical frustration occurs when entities in a system, subject to given lattice constraints, are hindered to simultaneously minimize their local interactions. In magnetism, systems incorporating geometrical frustration are fascinating, as their behavior is not only hard to predict, but also leads to the emergence of exotic states of matter. Here, we provide a first look into an artificial frustrated system, the dipolar trident lattice, where the balance of competing interactions between nearest-neighbor magnetic moments can be directly controlled, thus allowing versatile tuning of geometrical frustration and manipulation of ground state configurations. Our findings not only provide the basis for future studies on the low-temperature physics of the dipolar trident lattice, but also demonstrate how this frustration-by-design concept can deliver magnetically frustrated metamaterials. Artificial magnetic nanostructures enable the study of competing frustrated interactions with more control over the system parameters than is possible in magnetic materials. Farhan et al. present a two-dimensional lattice geometry where the frustration can be controlled by tuning the unit cell parameters.
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影响因子：
19.6
作者：
Farhan, A.;Derlet, P. M.;Heyderman, L. J.
通讯作者：
Heyderman, L. J.
影响因子：
44.1
作者：
Nisoli, Cristiano;Moessner, Roderich;Schiffer, Peter
通讯作者：
Schiffer, Peter
影响因子：
16.6
作者：
Canals, Benjamin;Chioar, Ioan-Augustin;Rougemaille, Nicolas
通讯作者：
Rougemaille, Nicolas
DOI：
10.1016/j.elspec.2012.05.005
发表时间：
2012-10-01
影响因子：
1.9
作者：
Doran, Andrew;Church, Matthew;Scholl, Andreas
通讯作者：
Scholl, Andreas
影响因子：
56.9
作者：
STOHR, J;WU, Y;TONNER, BP
通讯作者：
TONNER, BP