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arXiv 0812.4468cond-mat.mtrl-scicond-mat.dis-nn
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三角晶格纳米磁体的磁阻挫调谐

Tuning magnetic frustration of nanomagnets in triangular-lattice geometry

Xianglin Ke, Jie Li, Sheng Zhang, Cristiano Nisoli, Vincent H. Crespi, Peter Schiffer

摘要:

我们研究了单畴铁磁岛三角晶格上的磁矩的配置,研究了这种挫挫几何中静磁相互作用的后果。通过改变沿一个方向的岛-岛距离,我们能够调整相邻岛屿之间的不同相互作用的比率,从而导致岛屿矩之间的局部相关性的相应变化。与其他人工受抑磁体不同,这种晶格几何形状显示有序矩取向的区域,这可能是由于更高程度的各向异性导致受抑程度降低。

英文摘要:

We study the configuration of magnetic moments on triangular lattices of single-domain ferromagnetic islands, examining the consequences of magnetostatic interactions in this frustrated geometry. By varying the island-island distance along one direction, we are able to tune the ratio of different interactions between neighboring islands, resulting in a corresponding variation in the local correlations between the island moments. Unlike other artificial frustrated magnets, this lattice geometry displays regions of ordered moment orientation, possibly resulting from a higher degree of anisotropy leading to a reduced level of frustration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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