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Online ISSN : 1884-636X
Print ISSN : 1349-046X
ISSN-L : 1349-046X
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多層膜構造解析に向けたスピンコントラスト変調中性子反射率法の開発
熊田 高之三浦 大輔阿久津 和宏鈴木 淳市鳥飼 直也
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ジャーナル フリー

2020 年 30 巻 4 号 p. 207-211

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We developed a technique of spin-contrast-variation neutron reflectivity (SCV-NR) for structural analyses of multilayer films. The SCV-NR curves of the polystyrene monolayer film were precisely reproduced using a common set of structural parameters and neutron scattering length density at each proton polarization. This result ensures that SCV-NR curves are not deformed by inhomogeneous PH due to the spin-diffusion mechanism. The number of structural parameters of the lamellar microphase-separated poly(styrene-block-isoprene) thin film is too large to determine with a single unpolarized reflectivity curve only. However, these parameters converged through the global analysis of the SCV-NR curves. In this manner, SCV-NR determines the structure of multilayer films while excluding the incorrect structural model that accidentally accounts for a single unpolarized reflectivity curve only.

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© 2020 日本中性子科学会
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