Slater-Pauling behavior of interfacial magnetic properties of transition metal alloy/Pt structures
Slater-Pauling behavior of interfacial magnetic properties of transition metal alloy/Pt structures
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过渡金属合金/Pt结构界面磁性能的斯莱特-鲍林行为
DOI：
10.1103/physrevb.105.064403
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发表时间：
2022
影响因子：
3.7
通讯作者：
You Chun-Yeol
中科院分区：
文献类型：
--
作者：
Kim Nam-Hui;Qurat-ul-ain;Kim Joonwoo;Baek Eunchong;Kim June-Seo;Park Hyeon-Jong;Kohno Hiroshi;Lee Kyung-Jin;Rhim Sonny H.;Lee Hyun-Woo;You Chun-Yeol
铁磁体（FM）/重金属（HM）双层是电流感应磁化切换和手性磁结构生成的核心结构。 FM 矩的静态和动态特性主要取决于界面垂直磁各向异性 (iPMA) 和界面 Dzyaloshinskii-Moriya 相互作用 (iDMI)。因此，控制 iPMA 和 iDMI 并了解它们的底层物理原理至关重要。在这里，我们通过实验表明，iPMA 和 iDMI 与饱和磁化强度 () 一样，对 FM 变化表现出类似的 Slater-Pauling 依赖性。我们测量了 FM/HM 双层的 iPMA 和 iDMI，其中 HM 固定在 Pt 上，FM 从 Mn（电子数）变化到 Ni，包括它们的分数合金。我们的结果表明，对于 Slater-Pauling 依赖性很重要的态密度结构对于 iPMA 和 iDMI 也至关重要。这提供了一种设计手性磁性纹理的有用方法。
Ferromagnet (FM)/heavy metal (HM) bilayers are core structures for current-induced magnetization switching and chiral magnetic structure generation. Static and dynamic properties of the FM moment depend substantially on interfacial perpendicular magnetic anisotropy (iPMA) and interfacial Dzyaloshinskii-Moriya interaction (iDMI). Therefore, it is of crucial importance to control iPMA and iDMI, and to understand their underlying physics. Here we experimentally show that both iPMA and iDMI exhibit similar Slater-Pauling-like dependence on the FM variation as the saturation magnetization () does. We measure, iPMA, and iDMI of the FM/HM bilayers with HM fixed to Pt and FM varied from Mn (electron number) to Ni, including their alloys for fractional. Our result indicates that the density of states structure important for the Slater-Pauling dependence is crucial also for iPMA and iDMI. This provides a useful method to engineer chiral magnetic textures.