Abstract The structural and magnetic properties of (Sm, Y)(Fe0.8Co0.2)12−xTix (x = 0.6, 1) prepared by arc melting are investigated. The formation of the ThMn12 structure was facilitated by the substitution of Sm with Y at low Ti concentrations (x = 0.6), and almost a single phase with the ThMn12 structure was obtained for (Sm0.8Y0.2)(Fe0.8Co0.2)11.4Ti0.6. This suggests that Y plays an important role in stabilizing the ThMn12 structure owing to the decrease in the atomic radius of the rare earth site. The intrinsic magnetic properties of (Sm0.8Y0.2)(Fe0.8Co0.2)11.4Ti0.6 exhibited μ0Ms = 1.50 T, μ0Ha = 11 T, and Tc = 820 K at room temperature.

中文翻译：

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Y取代对Sm(Fe 0.8 Co 0.2 ) 11.4 Ti 0.6 结构和磁性能的影响

摘要 研究了电弧熔炼制备的(Sm, Y)(Fe0.8Co0.2)12-xTix (x = 0.6, 1)的结构和磁性能。在低 Ti 浓度（x = 0.6）下用 Y 取代 Sm 促进了 ThMn12 结构的形成，并且对于 (Sm0.8Y0.2)(Fe0.8Co0.2) 获得了几乎具有 ThMn12 结构的单相)11.4Ti0.6。这表明，由于稀土位点原子半径的减小，Y 在稳定 ThMn12 结构方面起着重要作用。(Sm0.8Y0.2)(Fe0.8Co0.2)11.4Ti0.6 的固有磁特性在室温下表现出 μ0Ms = 1.50 T，μ0Ha = 11 T，和 Tc = 820 K。