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首页> 外文期刊>Solid State Communications >Unpolarized and polarized neutron reflectometry for magnetic structure of nickel-copper multilayer film
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Unpolarized and polarized neutron reflectometry for magnetic structure of nickel-copper multilayer film

机译：镍铜多层膜磁性结构的非极化和极化中子反射法

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A room temperature neutron reflectometery study of a [Ni/Cu] multilayer, grown on Si substrate, has been presented. Close lattice constants of Ni and Cu allow low interfacial roughness in a Ni/Cu multilayer. However, Ni and Cu are also miscible over the entire range of compositions and may cause alloy formation at the interface. Neutron reflectometry in both unpolarized as well as polarized mode gave the full description of nuclear and magnetic (in-plane averaged) scattering length density as a function of depth. The polarized neutron reflectivity measurement showed that there is a reduction in the magnetic moment of Ni atom compared to its bulk value. Drastic reduction of Ni moment at the interface and presence of moment in the Cu layers indicate strong alloying at the interfaces.
机译：已经提出了在硅衬底上生长的[Ni / Cu]多层的室温中子反射仪研究。 Ni和Cu的紧密晶格常数允许Ni / Cu多层中的低界面粗糙度。然而，Ni和Cu在整个组成范围内也是可混溶的，并且可能导致在界面处形成合金。在非极化和极化模式下的中子反射测量都完整描述了作为深度函数的核和磁（面内平均）散射长度密度。极化中子反射率测量表明，与镍原子的体积值相比，镍原子的磁矩有所减小。界面处Ni矩的急剧减少和Cu层中矩的存在表明界面处的强合金化。

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