The magnetic domain structure of Y₂(Fe$_{x}$Co_1–$_{x}$)₁₇ (0.03 < $ x $ < 0.88) intermetallic compounds was investigated via magnetic force microscopy. It is experimentally shown that in the range of $x$ = 0.07 − 0.5, the surface magnetic domain structure of the single crystals reveals domains with typical uniaxial magnetocrystalline anisotropy configuration. The values of the surface energy density of the domain walls in these samples vary from 21.9 × 10⁻³ to 31.7 × 10⁻³ J/m². The surface domain structure of Y₂(Fe$_{x}$Co_1–$_{x}$)₁₇ ($ x $ > 0.5) single crystals with easy-plane-type anisotropy is described.

中文翻译：

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${Y_{2}(Fe_{x}Co_{1-x})_{17}}$化合物的磁畴结构

Y ₂ (Fe$_{x}$共_1–$_{x}$) ₁₇ (0.03 <$ x $< 0.88) 通过磁力显微镜研究金属间化合物。实验表明，在$x$= 0.07 - 0.5，单晶的表面磁畴结构显示具有典型单轴磁晶各向异性配置的畴。这些样品中畴壁的表面能密度值在21.9×10 ^-3到31.7×10 ^-3 J/m ^{2 之间变化}。Y ₂ (Fe$_{x}$共_1–$_{x}$) ₁₇ ($ x $ > 0.5) 描述了具有易平面型各向异性的单晶。