论文标题

MN/RE(0001)中的磁性单Q状态和Triple-Q状态的发现

Discovery of magnetic single- and triple-Q states in Mn/Re(0001)

论文作者

Spethmann, Jonas, Meyer, Sebastian, von Bergmann, Kirsten, Wiesendanger, Roland, Heinze, Stefan, Kubetzka, André

论文摘要

我们通过实验验证了两个模型型磁接地态的存在,这些磁接地态以前被预测但迄今未观察到。我们使用自旋极化扫描隧道显微镜在RE(0001)表面的MN单层中找到它们。对于MN的FCC堆叠,出现了共线的抗抗铁磁状态,而对于HCP MN出现了三维自旋结构,这是三排抗逆铁磁性状态的叠加,被称为三Q态。密度功能理论计算阐明了不同磁相互作用的微妙相互作用,以形成这些自旋结构,并洞悉相对论效应所起的作用。

We experimentally verify the existence of two model-type magnetic ground states which were previously predicted but so far unobserved. We find them in Mn monolayers on the Re(0001) surface using spin-polarized scanning tunneling microscopy. For fcc stacking of Mn the collinear row-wise antiferromagnetic state occurs, whereas for hcp Mn a three-dimensional spin structure appears, which is a superposition of three row-wise antiferromagnetic states and is known as triple-Q state. Density functional theory calculations elucidate the subtle interplay of different magnetic interactions to form these spin structures and provide insight into the role played by relativistic effects.

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